2023

High-Throughput Screening for Ultrafast Photochemical Reaction Discovery

Matthew Bain, Jose L. Godinez Castellanos, Stephen E. Bradforth. J. Phys. Chem. Lett. 2023, 14, XXX, 9864–9871. 10.1021/acs.jpclett.3c02389.

Stability and Reactivity of Aromatic Radical Anions in Solution with Relevance to Birch Reduction

T. Nemirovich, B. Young, K. Brezna, P. Mason, R. Seidel, D. Stemer, B. Winter, P. Jungwirth, S. Bradforth, H. C. Schewe. Submitted. Oct 2023.

Temperature dependence of radiative and non-radiative decay in the luminescence of one-dimensional pyridinium lead halide hybrids

A. Alfaraidi, J. Schaab, E. McClure, M. Kellogg, T. Hodgkins, M. Idris, S. Bradforth, B. Melot, M. Thompson, and P. Djurovich. Phys. Chem. Chem. Phys., 2023,25, 21993-22001. 10.1039/D3CP02186F

How does Mg2+(aq) interact with ATP(aq)? Observations through the lens of liquid-jet photoelectron spectroscopy

Karen Mudryk, Chin Lee, Lukáš Tomaník, Sebastian Malerz, Florian Trinter, Uwe Hergenhahn, Daniel M. Neumark, Petr Slavíček, Stephen Bradforth, and Bernd Winter, submitted (2023)

Intra- and Inter-Molecular Charge Transfer Dynamics of Carbene-Metal-Amide Photosensitizers

Kellogg M, Mencke A, Muniz C, Thabassum A, Cardoso-Delgado F, Baluyot-Reyes N, et al.  ChemRxiv. Cambridge: Cambridge Open Engage; 2023; Preprint.

Liquids in Vacuum: A Contradiction that Launched a Thousand Experiments

S. Bradforth, G. Nathanson, and R. Seidel. Acc. Chem. Res. 2023, 56, 6, 623–624. 10.1021/acs.accounts.3c00082

2022

Controlling Symmetry Breaking Charge Transfer in BODIPY Pairs

Estergreen, L.; Mencke, A.R.; Cotton, D.E.; Korovina, N.V.; Michl, J.; Roberts, S.T.; Thompson, M.E.; Bradforth, S.E.  Acc. of Chem. Res., 202255 (11), 1561-1572.   https://doi.org/10.1021/acs.accounts.2c00044

 

2021

Role of the Perfluoro Effect in the Selective Photochemical Isomerization of Hexafluorobenzene

Cox, J. M.; Bain, M.; Kellogg, M.; Bradforth, S. E.; Lopez, S. A. J Am Chem Soc 2021, 143 (18), 7002–7012. https://doi.org/10.1021/jacs.1c01506.

Spectroscopic Evidence for a Gold-Coloured Metallic Water Solution

Mason, P. E.; Schewe, H. C.; Buttersack, T.; Kostal, V.; Vitek, M.; McMullen, R. S.; Ali, H.; Trinter, F.; Lee, C.; Neumark, D. M.; Thürmer, S.; Seidel, R.; Winter, B.; Bradforth, S. E.; Jungwirth, P. Nature 2021, 595 (7869), 673–676. https://doi.org/10.1038/s41586-021-03646-5.

Electronic Structure of Liquid Alkanes: A Representative Case of Liquid Hexanes and Cyclohexane Studied Using Polarization-Dependent Two-Photon Absorption Spectroscopy

Bhattacharyya, D.; Zhang, Y.; Elles, C. G.; Bradforth, S. E. J Phys Chem 2021, 125 (36), 7988–7999. https://doi.org/10.1021/acs.jpca.1c06230.

2020

Probing the Electronic Structure of Bulk Water at the Molecular Length Scale with Angle-Resolved Photoelectron Spectroscopy

Gozem, S., Seidel, R., Hergenhahn, U., Lugovoy, E., Abel, B., Winter, B., Krylov, A., Bradforth, S. J. Phys. Chem. Lett., 2020, 11, 13, 5162-5170. DOI:10.1021/acs.jpclett.0c00968

Photoelectron spectra of alkali metal–ammonia microjets: From blue electrolyte to bronze metal

Buttersack, T., Mason, P. E., McMullen, R. S., Schewe, H. C., Martinek, T., Brezina, K., Crhan, M., Gomez, A., Hein, D., Wartner, G., Seidel, R., Ali, H. Thürmer, S.,  Marsalek, O., Winter, B., Bradforth, S. E., Jungwirth, P. Science, 2020, Vol. 368, Issue 6495, pp. 1086-1091, DOI: 10.1126/science.aaz7607

Deeply cooled and temperature controlled microjets: Liquid ammonia solutions released into vacuum for analysis by photoelectron spectroscopy

Buttersack, T., Mason, P., Jungwirth, P., Schewe, H., Winter, B., Seidel, R., McMullen, R., Bradforth, S. Review of Scientific Instruments 91(4), 043101. https://dx.doi.org/10.1063/1.5141359 (2020)

New Insights into the Charge-transfer-to-solvent Spectrum of Aqueous Iodide: Surface vs. Bulk

Bhattacharyya, D., Mizuno, H., Rizzuto, A., Zhang, Y., Saykally, R., Bradforth, S. The Journal of Physical Chemistry Letters (2020) https://dx.doi.org/10.1021/acs.jpclett.9b03857

2019

Effects of Interfacial Ligand Type on Hybrid P3HT:CdSe Quantum Dot Solar Cell Device Parameters

Matthew Greaney, Jimmy Joy, Blair Combs, Saptaparna Das, Jannise Buckley, Stephen Bradforth, and Richard L. Brutchey. The Journal of Chemical Physics 151(7), 074704. https://dx.doi.org/10.1063/1.5114932 (2019)

Electronic Structure of Liquid Methanol and Ethanol from Polarization-Dependent Two-Photon Absorption Spectroscopy

Dhritiman Bhattacharyya, Yuyuan Zhang, Christopher G. Elles and Stephen E. Bradforth, advanced article DOI: 10.1021/acs.jpca.9b04040 (2019)

“Quick-Silver” from a Systematic Study of Highly Luminescent, Two-Coordinate, d10 Coinage Metal Complexes

Hamze et al, J. Am. Chem. Soc. 2019, 141 (21) 8616-8626 (2019) DOI: 10.1021/jacs.9b03657

Symmetry breaking charge transfer as a means to study electron transfer with no driving force

Kellogg et al., Farad. Discuss. advance article DOI: 10.1039/C8FD00201K (2019)

Valence and Core-Level X-ray Photoelectron Spectroscopy of a Liquid Ammonia Microjet

Buttersack, T.; Mason, P. E.; McMullen, R.S; Martinek, T; Brezina K.; Hein, D.; Ali, H.; Kolbeck, C.; Schewe, C.; Malerz, S.; Winter, B.; Seidel, R.; Marsalek, O.; Jungwirth, P.; and Bradforth, S. E., J. Am. Chem. Soc. 141 (5),1838-1841 (2019) DOI: 10.1021/jacs.8b10942

2018

Linker-Dependent Singlet Fission in Tetracene Dimers

Korovina, N.; Joy, J; Feng, X.; Feltenberger, C.; Krylov, A. I.; Bradforth, S. E.; Thompson, M. E., J. Am. Chem. Soc. 140 (32), 10179-10190 (2018)DOI: 10.1021/jacs.8b04401

The influence of aqueous solvent on the electronic structure and non-adiabatic dynamics of indole explored by liquid-jet photoelectron spectroscopy

Kumar, G.; McMullen, R.; Bradforth, S.E., Faraday Discussions212, 359–381 (2018) DOI: 10.1039/C8FD00123E

Manipulating Triplet Yield through Control of Symmetry-Breaking Charge Transfer

Das, S., Thornbury, W. G., Bartynski, A. N.; Thompson, M. E. and Bradforth, S. E.;  J. Phys. Chem. Lett., 2018, 9 (12), pp 3264–3270 DOI:10.1021/acs.jpclett.8b01237

Symmetry-Breaking Charge Transfer in Boron Dipyridylmethene (DIPYR) Dimers

Golden, J. H. et al. ACS Appl. Energy Mater. 13, 1083-1095 (2018) acsaem.7b00214–1095

Exploring Redox Properties of Aromatic Amino Acids in Water: Contrasting Single Photon vs Resonant Multiphoton Ionization in Aqueous Solutions

Roy, A., Seidel, R., Kumar, G. & Bradforth, S. E. J. Phys. Chem. B 122, 3723–3733 (2018).

Scintillation Yield Estimates of Colloidal Cerium-Doped LaF3 Nanoparticles and Potential for “Deep PDT”

Konstantin A. Kudinov, Daniel R. Cooper, Jonathan K. Ha, Colin K. Hill, Jay L. Nadeau, Jan P. Seuntjens, and Stephen E. Bradforth, Radiation Research: 190 (1), 28-36 (2018) doi:10.1667/RR14944.1

2017

Vibronic Structure in Room Temperature Photoluminescence of the Halide Perovskite Cs3Bi2Br9

Bass, K. K., Estergreen, L., Savory, C. N., Buckeridge, J., Scanlon, D. O., Djurovich, P. I., Bradforth, S. E., Thompson, M. E., and Melot, B. C. Inorg. Chem. 56, 42–45 (2017) doi:10.1021/acs.inorgchem.6b01571

Electronic structure of aqueous solutions: Bridging the gap between theory and experiments

Pham, T. A., Govoni, M., Seidel, R., Bradforth, S. E., Schwegler, E., and Galli, G. Sci. Adv. 3, e1603210 (2017) doi:10.1126/sciadv.1603210

Decoupling Inter- and Intra-Dimer Singlet Fission

Joy, J., Korovina, N., Thompson, M. E., and Bradforth, S. E. SPIE Nanoscience + Engineering 10348, 10348P1–P9 (2017) doi:10.1117/12.2274493

Defects Cause Subgap Luminescence from a Crystalline Tetracene Derivative”

McAnally, R. E., Bender, J. A., Estergreen, L., Haiges, R., Bradforth, S. E., Dawlaty, J. M., Roberts, S. T., and Rury, A. S. “ J. Phys. Chem. Lett. 5993–6001 (2017) doi:10.1021/acs.jpclett.7b02718

2016

Kudinov, K., Bekah, D., Cooper, D., Shastry, S., Hill, C., Bradforth, S., and Nadeau, J. “Lanthanum Fluoride Nanoparticles for Radiosensitization of Tumors” SPIE BiOS 9722, 97220V–8 (2016) doi:10.1117/12.2213374

Seidel, R., Winter, B., and Bradforth, S. “Valence Electronic Structure of Aqueous Solutions: Insights From Photoelectron Spectroscopy” Annu. Rev. Phys. Chem.67, 283–305 (2016) doi:10.1146/annurev-physchem-040513-103715

Lu, H., Joy, J., Gaspar, R. L., Bradforth, S. E., and Brutchey, R. L. “Iodide-Passivated Colloidal PbS Nanocrystals Leading to Highly Efficient Polymer:Nanocrystal Hybrid Solar Cells” Chem. Mat. 28, 1897–1906 (2016) doi:10.1021/acs.chemmater.6b00185

Bekah, D., Cooper, D., Kudinov, K., Hill, C., Seuntjens, J., Bradforth, S., and Nadeau, J. “Synthesis and Characterization of Biologically Stable, Doped LaF3 Nanoparticles Co-Conjugated to PEG and Photosensitizers” J. Photochem. Photobiol. A-Chem. 329 IS , 26–34 (2016) doi:10.1016/j.jphotochem.2016.06.008

Korovina, N. V., Das, S., Nett, Z., Feng, X., Joy, J., Haiges, R., Krylov, A. I., Bradforth, S. E., and Thompson, M. E. “Singlet Fission in a Covalently Linked Cofacial Alkynyltetracene Dimer” J. Am. Chem. Soc. 138, 617–627 (2016) doi:10.1021/jacs.5b10550

2015

Schroeder, C. A., Pluhařová, E., Seidel, R., Schroeder, W. P., Faubel, M., Slavíček, P., Winter, B., Jungwirth, P., and Bradforth, S. E. “Oxidation Half-Reaction of Aqueous Nucleosides and Nucleotides via Photoelectron Spectroscopy Augmented by Ab Initio Calculations” J. Am. Chem. Soc. 137, 201–209 (2015) doi:10.1021/ja508149e

Zhang, X., Shastry, S., Bradforth, S. E., and Nadeau, J. L. “Nuclear Uptake of Ultrasmall Gold-Doxorubicin Conjugates Imaged by Fluorescence Lifetime Imaging Microscopy (FLIM) and Electron Microscopy” Nanoscale 7, 240–251 (2015) doi:10.1039/C4NR04707A

Greaney, M. J., Couderc, E., Zhao, J., Nail, B. A., Mecklenburg, M., Thornbury, W., Osterloh, F. E., Bradforth, S. E., and Brutchey, R. L. “Controlling the Trap State Landscape of Colloidal CdSe Nanocrystals with Cadmium Halide Ligands” Chem. Mat. 27, 744–756 (2015) doi:10.1021/cm503529j

Das, S., Latif, A. A., Thornbury, W., Thompson, B. C., and Bradforth, S. E. “Absolute Polaron Yield of Donor-Acceptor P3HT:Fullerene Bulk Heterojunction Composites” SPIE Nanoscience + Engineering 9549, 95490N–95490N–9 (2015) doi:10.1117/12.2189531

Couderc, E., Greaney, M. J., Thornbury, W., Brutchey, R. L., and Bradforth, S. E. “Deconvoluting Contributions of Photoexcited Species in Polymer-Quantum Dot Hybrid Photovoltaic Materials” J. Photon. Energ 5, 057404 (2015) doi:10.1117/1.JPE.5.057404

Kudinov, K., Cooper, D., Tyagi, P., Bekah, D., Bhattacharyya, D., Hill, C., Ha, J. K., Nadeau, J., and Bradforth, S. “Evidence of Energy Transfer in Nanoparticle-Porphyrins Conjugates for Radiation Therapy Enhancement” SPIE BiOS 9338, 93380H (2015) doi:10.1117/12.2077985

Bartynski, A. N., Gruber, M., Das, S., Rangan, S., Mollinger, S., Trinh, C., Bradforth, S. E., Vandewal, K., Salleo, A., Bartynski, R. A., Bruetting, W., and Thompson, M. E. “Symmetry-Breaking Charge Transfer in a Zinc Chlorodipyrrin Acceptor for High Open Circuit Voltage Organic Photovoltaics.” J. Am. Chem. Soc. 137, 5397–5405 (2015) doi:10.1021/jacs.5b00146

Miller, E. “Searching for Better Approaches: Effective Evaluation of Teaching and Learning in STEM” (2015)

Bradforth, S. E., Miller, E. R., Dichtel, W. R., Leibovich, A. K., Feig, A. L., Martin, J. D., Bjorkman, K. S., Schultz, Z. D., and Smith, T. L. “University Learning: Improve Undergraduate Science Education.” Nature 523, 282–284 (2015) doi:10.1038/523282a

Oliver, T. A. A., Zhang, Y., Zhang, Y., Roy, A., Roy, A., Ashfold, M. N. R., Ashfold, M. N. R., and Bradforth, S. E. “Exploring Autoionization and Photoinduced Proton-Coupled Electron Transfer Pathways of Phenol in Aqueous Solution” J. Phys. Chem. Lett. 6, 4159–4164 (2015) doi:10.1021/acs.jpclett.5b01861

“Nuclear uptake of ultrasmall gold-doxorubicin conjugates imaged by fluorescence lifetime imaging microscopy (FLIM) and electron microscopy”, X. Zhang, S. Shastry, S. E. Bradforth, and J. L. Nadeau, Nanoscale, in press (2015). link

2014

“Symmetry-Breaking Charge Transfer of Visible Light Absorbing Systems: Zinc Dipyrrins”, C. Trinh, K. Kirlikovali, S. Das, M. E. Ener, H. B. Gray, P. Djurovich, S. E. Bradforth, and M. E. Thompson, Journal of Physical Chemistry C 118, 21834-45 (2014). link

“Oxidation half-reaction of aqueous nucleosides and nucleotides via photoelectron spectroscopy augmented by ab initio calculations”, C. A. Schroeder, E. Pluhařová, R. Seidel, W. P. Schroeder, M. Faubel, P. Slavíček, B. Winter, P. Jungwirth, and S. E. Bradforth, Journal of the American Chemical Society, in press (2014). link 

“On The Possibility of Combining Radiotherapy and Photodynamic Therapy”, K. A. Kudinov, D. Cooper, P. Tyagi, C. Hill, J. Ha, J. Nadeau, and S. Bradforth, CLEO: 2014 Postdeadline Paper Digest, STh5C.1 (2014). link

“Quantifying Charge Recombination in Solar Cells Based on Donor–Acceptor P3HT Analogues”, S. Das, P. P. Khlyabich, B. Burkhart, S. T. Roberts, E. Couderc, B. C. Thompson, and S. E. Bradforth, Journal of Physical Chemistry C 118, 6650-60 (2014). link

“Ultrafast electron transfer from low band gap conjugated polymer to quantum dots in hybrid photovoltaic materials”, E. Couderc, M. J. Greaney, W. Thornbury, R. L. Brutchey, and S. E. Bradforth, Proceedings of SPIE-The International Society for Optical Engineering 9165, 91650P-P-7 (2014). link

“Deconvoluting Contributions of Photo-Excited Species in Polymer- Quantum Dot Hybrid Photovoltaic Materials”, E. Couderc, M. J. Greaney, W. Thornbury, R. L. Brutchey, and S. E. Bradforth, Journal of Photonics for Energy, in press (2014). link

“Photoluminescence of cerium fluoride and cerium-doped lanthanum fluoride nanoparticles and investigation of energy transfer to photosensitizer molecules”, D. R. Cooper, K. Kudinov, P. Tyagi, C. K. Hill, S. E. Bradforth, and J. L. Nadeau, Physical Chemistry Chemical Physics : PCCP 16, 12441-53 (2014). link

“Chalcogenol Ligand Toolbox for CdSe Nanocrystals and Their Influence on Exciton Relaxation Pathways”, J. J. Buckley, E. Couderc, M. J. Greaney, J. Munteanu, C. T. Riche, S. E. Bradforth, and R. L. Brutchey, ACS Nano 8, 2512-21 (2014). link

2013

“Direct Spectroscopic Evidence of Ultrafast Electron Transfer from a Low Band Gap Polymer to CdSe Quantum Dots in Hybrid Photovoltaic Thin Films”, E. Couderc, M. J. Greaney, R. L. Brutchey, and S. E. Bradforth, Journal of the American Chemical Society 135, 18418-26 (2013). link

“Fused Porphyrin–Single-Walled Carbon Nanotube Hybrids: Efficient Formation and Photophysical Characterization”, Q. Zhong, V. V. Diev, S. T. Roberts, P. D. Antunez, R. L. Brutchey, S. E. Bradforth, and M. E. Thompson, ACS Nano 7, 3466-75 (2013). link

“Exploring the Energy Disposal Immediately After Bond-Breaking in Solution: The Wavelength-Dependent Excited State Dissociation Pathways of para-Methylthiophenol”, Y. Zhang, T. A. A. Oliver, S. Das, A. Roy, M. N. R. Ashfold, and S. E. Bradforth, Journal of Physical Chemistry A 117, 12125–37 (2013). link

“Photoelectron Angular Distributions from Liquid Water: Effects of Electron Scattering”, S. Thürmer, R. Seidel, M. Faubel, W. Eberhardt, J. C. Hemminger, S. E. Bradforth, and B. Winter, Physical Review Letters 111, 173005 (2013). link

“On the nature and origin of dicationic, charge-separated species formed in liquid water on X-ray irradiation.”, S. Thürmer, M. Oncak, N. Ottosson, R. Seidel, U. Hergenhahn, S. E. Bradforth, P. Slavícek, and B. Winter, Nature Chemistry 5, 590-6 (2013). link

“Photon quenching in InGaN quantum well light emitting devices”, R. Sarkissian, S. T. Roberts, T.-W. Yeh, S. Das, S. E. Bradforth, J. OBrien, and P. Daniel Dapkus, Applied Physics Letters 103, 041123 (2013). link

“Unexpectedly Small Effect of the DNA Environment on Vertical Ionization Energies of Aqueous Nucleobases”, E. Pluhařová, C. Schroeder, R. Seidel, S. E. Bradforth, B. Winter, M. Faubel, P. Slavícek, and P. Jungwirth, Journal of Physical Chemistry Letters 4, 3766-9 (2013). link

“Emission of Macrocyclic and Linear Poly(2-vinylnaphthalene): Observation of Two Excimer Populations in Macrocycles”, G. G. Nossarev, J. Johnson, S. E. Bradforth, and T. E. Hogen-Esch, Journal of Physical Chemistry C 117, 10244-56 (2013). link

“Aqueous Colloidal Acene Nanoparticles: A New Platform for Studying Singlet Fission”, J. N. Mastron, S. T. Roberts, R. E. McAnally, M. E. Thompson, and S. E. Bradforth, Journal of Physical Chemistry B 117, 15519-26 (2013). link

“Comparing molecular photofragmentation dynamics in the gas and liquid phases”, S. J. Harris, D. Murdock, Y. Zhang, T. A. A. Oliver, M. P. Grubb, A. J. Orr-Ewing, G. M. Greetham, I. P. Clark, M. Towrie, S. E. Bradforth et al., Physical Chemistry Chemical Physics 15, 6567 (2013). link

“Differential effects of β-mercaptoethanol on CdSe/ZnS and InP/ZnS quantum dots”, M. Georgin, L. Carlini, D. Cooper, S. E. Bradforth, and J. L. Nadeau, Physical Chemistry Chemical Physics 15, 10418 (2013). link

2012

“Contrasting the excited state reaction pathways of phenol and para-methylthiophenol in the gas and liquid phases”, Y. Zhang, T. A. A. Oliver, M. N. R. Ashfold, and S. E. Bradforth, Faraday Discussions 157, 141-63 (2012). link

“Transforming Anion Instability into Stability: Contrasting Photoionization of Three Protonation Forms of the Phosphate Ion upon Moving into Water”, E. Pluharova, M. Oncak, R. Seidel, C. Schroeder, W. Schroeder, B. Winter, S. E. Bradforth, P. Jungwirth, and P. Slavicek, Journal of Physical Chemistry B 116, 13254-64 (2012). link

“Symmetry-Breaking Intramolecular Charge Transfer in the Excited State of meso-Linked BODIPY Dyads”, M. T. Whited, N. M. Patel, S. T. Roberts, K. Allen, P. I. Djurovich, S. E. Bradforth, and M. E. Thompson, Chemical Communications 48, 284-6 (2012). link

“Efficient Singlet Fission Discovered in a Disordered Acene Film”, S. T. Roberts, R. E. McAnally, J. N. Mastron, D. H. Webber, M. T. Whited, R. L. Brutchey, M. E. Thompson, and S. E. Bradforth, Journal of the American Chemical Society 134, 6388-400 (2012). link

“Effects of β-Mercaptoethanol on Quantum Dot Emission Evaluated from Photoluminescence Decays”, J. L. Nadeau, L. Carlini, D. Suffern, O. Ivanova, and S. E. Bradforth, Journal of Physical Chemistry C 116, 2728–39 (2012). link

“Improving Open Circuit Potential in Hybrid P3HT:CdSe Bulk Heterojunction Solar Cells via Colloidal tert-Butylthiol Ligand Exchange”, M. Greaney, S. Das, D. H. Webber, S. E. Bradforth, and R. L. Brutchey, ACS Nano 6, 4222-30 (2012). link

“First-Principle Protocol for Calculating Ionization Energies and Redox Potentials of Solvated Molecules and Ions: Theory and Application to Aqueous Phenol and Phenolate”, D. Ghosh, A. Roy, R. Seidel, B. Winter, S. E. Bradforth, and A. I. Krylov, Journal of Physical Chemistry B 116, 7269-80 (2012). link

“General Discussion”, S. E. Bradforth, Faraday Discussions 157, 243-84 (2012). link

Previous Work

“Ultrafast hybridization screening in Fe3+ aqueous solution”, S. Thürmer, R. Seidel, W. Eberhardt, S. E. Bradforth, and B. Winter, Journal of the American Chemical Society 133, 12528 -35 (2011). link

“Observation of Triplet Exciton Formation in a Platinum-Sensitized Organic Photovoltaic Device”, S. T. Roberts, C. W. Schlenker, V. Barlier, R. E. McAnally, Y. Zhang, J. N. Mastron, M. E. Thompson, and S. E. Bradforth, Journal of Physical Chemistry Letters 2, 48-54 (2011). link

“The dynamical role of solvent on the ICN photodissociation reaction: connecting experimental observables directly with molecular dynamics simulations”, C. A. Rivera, N. Winter, R. V. Harper, I. Benjamin, and S. E. Bradforth, Physical Chemistry Chemical Physics 13, 8269-83 (2011). link

“Ionization of Purine Tautomers in Nucleobases, Nucleosides, and Nucleotides: From the Gas Phase to the Aqueous Environment”, E. Pluhařová, P. Jungwirth, S. E. Bradforth, and P. Slavíček, Journal of Physical Chemistry B 115, 1294–305 (2011). link

“Linking Photochemistry in the Gas and Solution Phase: S-H bond Fission in p-Methylthiophenol Following UV Photoexcitation”, T. A. A. Oliver, Y. Zhang, M. N. R. Ashfold, and S. E. Bradforth, Faraday Discussions 150, 439 – 58 (2011). link

“Chasing charge localization and chemical reactivity following photoionization in liquid water”, O. Marsalek, C. G. Elles, P. A. Pieniazek, E. Pluhařová, J. VandeVondele, S. E. Bradforth, and P. Jungwirth, Journal of Chemical Physics 135, 224510(1-14) (2011). link

“Broadband spectral probing revealing ultrafast photochemical branching after ultraviolet excitation of the aqueous phenolate anion”, X. Chen, D. S. Larsen, S. E. Bradforth, and I. H. M. van Stokkum, Journal of Physical Chemistry A 115, 3807-19 (2011). link

“Tracking State-to-State Bimolecular Reaction Dynamics in Solution”, S. E. Bradforth, Science 331, 1398-9 (2011). link

“General Discussion”, S. E. Bradforth, Faraday Discussions 150, 505-32 (2011). link

“Wavelength dependence of ultraviolet radiation-induced DNA damage as determined by near monochromatic laser irradiation suggests that cyclobutane pyrimidine dimers are the principal DNA lesions produced by terrestrial sunlight”, A. Besaratinia, J.-i. Yoon, C. Schroeder, M. Cockburn, S. E. Bradforth, and G. P. Pfeifer, FASEB Journal 25, 3079-91 (2011). link

“Singlet and Triplet Excitation Management in a Bichromophoric NIR-Phosphorescent BODIPY-Benzoporphyrin Platinum Complex”, M. T. Whited, P. I. Djurovich, S. T. Roberts, A. C. Durrell, C. W. Schlenker, S. E. Bradforth, and M. E. Thompson, Journal of the American Chemical Society 133, 88-96 (2010). link

“Gires-Tournois interferometer type negative dispersion mirrors for deep ultraviolet pulse compression”, C. A. Rivera, S. E. Bradforth, and G. Tempea, Optics Express 18, 18615-24 (2010). link

“Photoelectron spectroscopy of liquid water and aqueous solution: Electron effective attenuation lengths and emission-angle anisotropy “, N. Ottosson, M. Faubel, S. E. Bradforth, P. Jungwirth, and B. Winter, Journal of Electron Spectroscopy and Related Phenomena 177, 60-70 (2010). link

“Hydrogen forms in water by proton transfer to a distorted electron”, O. Maršálek, T. Frigato, J. VandeVondele, S. E. Bradforth, B. Schmidt, C. Schütte, and P. Jungwirth, Journal of Physical Chemistry B 114, 915–20 (2010). link

“Interfacial charge transfer between CdTe quantum dots and Gram negative vs. Gram positive bacteria”, D. Cooper, E. Dumas, L. Carlini, C. Gao, D. Suffern, S. E. Bradforth, and J. L. Nadeau, Environmental Science and Technology 44, 1464-70 (2010). link

“Photoenhancement of quantum dots and conjugates measured by time-resolved spectroscopy”, D. Suffern, D. Cooper, L. Carlini, R. Parbhoo, S. E. Bradforth, and J. Nadeau, Proc. SPIE -Int. Soc. Opt. Eng. 7189, 718905 (2009). link

“Ionization energies of aqueous pyrimidine components of nucleic acids by photoelectron spectroscopy and ab initio calculations”, P. Slavíček, B. Winter, M. Faubel, S. E. Bradforth, and P. Jungwirth, Journal of the American Chemical Society 131, 6460–7 (2009). link

“The degree of initial hole localization/delocalization in ionized water clusters”, P. A. Pieniazek, E. J. Sundstrom, S. E. Bradforth, and A. I. Krylov, Journal of Physical Chemistry A 113, 4423–9 (2009). link

“Synthesis and Spectroscopy of Poly(9,9-dihexylfluorene-2,7-diyl-co-9,9-dihexylfluorene-3,6-diyl)s and Their Model Oligomers”, N. Fomina, S. E. Bradforth, and T. E. Hogen-Esch, Macromolecules 42, 6440-7 (2009). link

“Electronic structure of liquid water from polarization-dependent two-photon absorption spectroscopy”, C. G. Elles, C. Rivera, X. Zhang, P. A. Pieniazek, and S. E. Bradforth, Journal of Chemical Physics 130, 084501 (2009). link

“Photoenhancement of Lifetimes in CdSe/ZnS and CdTe Quantum Dot-Dopamine Conjugates”, D. Cooper, L. Carlini, S. Clarke, D. Suffern, R. Parbhoo, S. E. Bradforth, and J. Nadeau, Physical Chemistry Chemical Physics 11, 4298 – 310 (2009). link

“Electronic structure of the water dimer cation”, P. A. Pieniazek, J. vandeVondele, P. Jungwirth, A. I. Krylov, and S. E. Bradforth, Journal of Physical Chemistry A 112, 6159–70 (cover article) (2008). link

“Charge localization and Jahn–Teller distortions in the benzene dimer cation”, P. A. Pieniazek, S. E. Bradforth, and A. I. Krylov, Journal of Chemical Physics 129, 074104 (1-11) (2008). link

“Photoionization of atmospheric gases studied by time-resolved terahertz spectroscopy”, Z. Mics, P. Kužel, P. Jungwirth, and S. E. Bradforth, Chemical Physics Letters 465, 20-4 (2008). link

“Investigation of macrocyclic polymers as artificial light harvesters: sub-picosecond energy transfer in poly(9,9-dimethyl-2-vinyl-fluorene)”, J. M. Johnson, R. Chen, X. Chen, A. C. Moskun, X. Zhang, T. E. Hogen-Esch, and S. E. Bradforth, Journal of Physical Chemistry B 112, 16367–81 (2008). link

“The Ultrafast Dynamics of Photodetachment”, X. Chen and S. E. Bradforth, Annual Review of Physical Chemistry 59, 203-31 (2008). link

“Electronic Structure of the benzene dimer cation”, P. A. Pieniazek, A. I. Krylov, and S. E. Bradforth, Journal of Chemical Physics 127, 044317(1-16) (2007). link

“Benchmark full configuration interaction and EOM-IP-CCSD results for prototypical charge transfer systems: Non-covalent ionized dimers”, P. A. Pieniazek, S. A. Arnstein, S. E. Bradforth, A. I. Krylov, and C. D. Sherrill, Journal of Chemical Physics 127, 164110 (2007). link

“Excited state dynamics of liquid water: Insight from the dissociation reaction following two-photon excitation”, C. G. Elles, I. Shkrob, R. A. Crowell, and S. E. Bradforth, Journal of Chemical Physics 126, 164503 (1-8) (2007). link

“Reluctant to leave parent: A different spectroscopic look at liquid salty water”, B. Winter, I. V. Hertel, C. Pettenkofer, S. E. Bradforth, and M. Faubel, BESSY Highlights 2005 (2006). link

“Electron binding energies of hydrated H3O+ and OH- : Photoelectron spectroscopy of aqueous acid and base solutions combined with electronic structure calculations”, B. Winter, M. Faubel, I. V. Hertel, C. Pettenkofer, S. E. Bradforth, B. Jagoda-Cwiklik, L. Cwiklik, and P. Jungwirth, Journal of the American Chemical Society 128, 3864-5 (2006). link

“Labeling of subcellular redox potential with dopamine-conjugated quantum dots”, D. Suffern, S. J. Clarke, C. A. Hollmann, D. Bahcheli, S. E. Bradforth, and J. L. Nadeau, Proc. SPIE – Int. Soc. Opt. Eng. 6096, 60960O (2006). link

“Spectroscopy of the cyano radical in an aqueous environment”, P. A. Pieniazek, S. E. Bradforth, and A. I. Krylov, Journal of Physical Chemistry A 110, 4854-65 (cover article) (2006). link

“Rotational Coherence and a Sudden Breakdown in Linear Response Seen in Room-Temperature Liquids”, A. C. Moskun, A. E. Jailaubekov, S. E. Bradforth, G. Tao, and R. M. Stratt, Science 311, 1907-11 (2006). link

“Absence of a Signature of Aqueous I(2P1/2) after 200-nm Photodetachment of I-(aq)”, A. C. Moskun, S. E. Bradforth, J. Thogersen, and S. Keiding, Journal of Physical Chemistry A 110, 10947-55 (2006). link

“Electron Photodetachment from aqueous anions. III. Dynamics of Geminate Pairs derived from photoexcitation of mono- vs. poly- atomic anions”, R. Lian, D. Oulianov, R. A. Crowell, I. A. Shkrob, X. Chen, and S. E. Bradforth, Journal of Physical Chemistry A 110, 9071-8 (2006). link

“Excitation-energy dependence of the mechanism for two-photon ionization of liquid H2O and D2O from 8.3 to 12.4 eV”, C. G. Elles, A. E. Jailaubekov, R. A. Crowell, and S. E. Bradforth, Journal of Chemical Physics 125, 044515 (1-12) (2006). link

 “Photophysics of electron-donor modified quantum dots and effects on biological systems”, S. J. Clarke, C. A. Hollmann, Z. Zhang, D. Suffern, S. E. Bradforth, N. M. Dimitrijevic, W. G. Minarik, and J. L. Nadeau, Nature Materials 5, 409-17 (2006). link

“Electron binding energies of aqueous alkali and halide ions: EUV photoelectron spectroscopy of liquid solutions and combined ab initio and molecular dynamics calculations”, B. Winter, R. Weber, I. V. Hertel, M. Faubel, P. Jungwirth, E. C. Brown, and S. E. Bradforth, Journal of the American Chemical Society 127, 7203-14 (2005). link

 “Solvent effects on geminate recombination dynamics after photodetachment”, V. H. Vilchiz, X. Y. Chen, J. A. Kloepfer, and S. E. Bradforth, Radiation Physics and Chemistry 72, 159-67 (2005). link

“Mechanisms of Quantum Dot Interactions with Biological Cells”, J. L. Nadeau, S. J. Clarke, R. A. Khatchadouriana, D. M. Bahchelia, D. Suffern, and S. E. Bradforth, Proc. SPIE – Int. Soc. Opt. Eng. 5969, 596907 (2005). link

“Nonresonant ionization of oxygen molecules by femtosecond pulses: plasma dynamics studied by time-resolved terahertz spectroscopy”, Z. Mics, F. Kadlec, P. Kuzel, P. Jungwirth, S. E. Bradforth, and V. A. Apkarian, Journal of Chemical Physics 123, 104310 (1-10) (2005). link

“Photo-physical properties of biologically compatible CdSe quantum dot structures”, J. A. Kloepfer, S. E. Bradforth, and J. Nadeau, Journal of Physical Chemistry B 109, 9996-10003 (2005). link

“Tunable 30-femtosecond pulses across the deep ultraviolet”, A. E. Jailaubekov and S. E. Bradforth, Applied Physics Letters 87, 021107 (1-3) (2005). link

“Role of water in electron-initiated processes and radical chemistry: Issues and scientific advances”, B. C. Garrett, D. A. Dixon, D. M. Camaioni, D. M. Chipman, M. A. Johnson, C. D. Jonah, G. A. Kimmel, J. H. Miller, T. N. Rescigno, P. J. Rossky et al., Chemical Reviews 105, 355-89 (2005). link

“Electron photodetachment from aqueous anions. 2. Ionic strength effect on geminate recombination dynamics and quantum yield for hydrated electron”, M. C. Sauer, I. A. Shkrob, R. Lian, R. A. Crowell, D. M. Bartels, X. Y. Chen, D. Suffern, and S. E. Bradforth, Journal of Physical Chemistry A 108, 10414-25 (2004). link

“Ultrafast dynamics for electron photodetachment from aqueous hydroxide”, R. A. Crowell, R. Lian, I. A. Shkrob, D. M. Bartels, X. Y. Chen, and S. E. Bradforth, Journal of Chemical Physics 120, 11712-25 (2004). link

“Flowing liquid sample jet for resonance Raman and ultrafast optical spectroscopy”, M. J. Tauber, R. A. Mathies, X. Y. Chen, and S. E. Bradforth, Review of Scientific Instruments 74, 4958-60 (2003). link

“Photodissociation of ICN in polar solvents: Evidence for long lived rotational excitation in room temperature liquids”, A. C. Moskun and S. E. Bradforth, Journal of Chemical Physics 119, 4500-15 (2003). link

“Molecular Mechanisms for Photodetachment in Water”, J. A. Kloepfer, V. H. Vilchiz, V. A. Lenchenkov, and S. E. Bradforth, in Ultrafast Phenomena XIII, edited by D. Miller, M. M. Murnane, N. F. Scherer, and A. M. Weiner (Springer Verlag, Berlin, 2003), pp. 471-3. link

“Spectroscopy of macrocyclic poly (9,9-dimethyl-2-vinylfluorene) as an artificial light harvester”, J. M. Johnson, X. Chen, A. C. Germaine, X. Zhang, K. Alberty, T. E. Hogen-Esch, and S. E. Bradforth, in Ultrafast Phenomena XIII, edited by D. Miller, M. M. Murnane, N. F. Scherer, and A. M. Weiner (Springer-Verlag, Berlin, 2003), pp. 517-9. link

“Photodissociation of ICN in polar solvents: evidence of long lived rotational excitation in real liquids”, A. C. Germaine and S. E. Bradforth, in Ultrafast Phenomena XIII, edited by D. Miller, M. M. Murnane, N. F. Scherer, and A. M. Weiner (Springer-Verlag, Berlin, 2003), pp. 426-8. link

“Ultraviolet absorption and fluorescence emission spectroscopic studies of macrocyclic and linear poly(9,9-dimethyl-2-vinylfluorene). Evidence for ground-state chromophore interactions”, R. Chen, J. M. Johnson, S. E. Bradforth, and T. E. Hogen-Esch, Macromolecules 36, 9966-70 (2003). link

“Time-resolved scavenging and recombination dynamics from I : e- caged pairs”, J. A. Kloepfer, V. H. Vilchiz, V. A. Lenchenkov, X. Y. Chen, and S. E. Bradforth, Journal of Chemical Physics 117, 766-78 (2002). link

“Electron photodetachment in solution”, J. A. Kloepfer, V. H. Vilchiz, V. A. Lenchenkov, and S. E. Bradforth, in Liquid Dynamics: Experiment, Simulation, and Theory, edited by J. Fourkas (ACS Books, Washington, D.C., 2002), Vol. 820, pp. 108-21. link

“Excited states of iodide anions in water: A comparison of the electronic structure in clusters and in bulk solution”, S. E. Bradforth and P. Jungwirth, Journal of Physical Chemistry A 106, 1286-98 (2002). link

“Characterization and fluorescence of macrocyclic polystyrene by anionic end to end coupling. Role of coupling reagents”, K. A. Alberty, E. Tillman, S. Carlotti, K. King, S. E. Bradforth, T. E. Hogen-Esch, D. Parker, and W. J. Feast, Macromolecules 35, 3856-65 (2002). link

“Map for the relaxation dynamics of hot photoelectrons injected into liquid water via anion threshold photodetachment and above threshold solvent ionization”, V. H. Vilchiz, J. A. Kloepfer, A. C. Germaine, V. A. Lenchenkov, and S. E. Bradforth, Journal of Physical Chemistry A 105, 1711-23 (2001). link

“Electron photodetachment from [Fe(CN)6]4-: photoelectron relaxation and geminate recombination”, V. Lenchenkov, J. Kloepfer, V. Vilchiz, and S. E. Bradforth, Chemical Physics Letters 342, 277-86 (2001). link

“Ultrafast thermalization dynamics of hot photoelectrons injected into water”, V. H. Vilchiz, J. A.Kloepfer, A. C. Germaine, V. A. Lenchenkov, and S. E. Bradforth, in Ultrafast Phenomena Xii, edited by T. Elsaesser, S. Mukamel, M. M. Murnane, and N. F. Scherer (Springer-Verlag, Berlin, 2000), pp. 467-9. link

“Femtosecond Study of Electron Photodetachment from Complex Anions: Fe(CN)64 – and CuBr2- in H2O”, V. A. Lenchenkov, V. H. Vilchiz, J. A. Kloepfer, and S. E. Bradforth, in Ultrafast Phenomena Xii, edited by T. Elsaesser, S. Mukamel, M. M. Murnane, and N. F. Scherer (Springer-Verlag, Berlin, 2000), pp. 476-8. link

“The ejection distribution of solvated electrons generated by the one-photon photodetachment of aqueous I- and two-photon ionization of the solvent”, J. A. Kloepfer, V. H. Vilchiz, V. A. Lenchenkov, A. C. Germaine, and S. E. Bradforth, Journal of Chemical Physics 113, 6288-307 (2000). link

“Cyclic polystyrene by anionic polymerization: fluorescence studies”, K. A. Alberty, E. Tillman, S. Carlotti, S. E. Bradforth, and T. E. Hogen-Esch, ACS Division of Polymer Science, Polymer Preprints 42, 584-5 (2000). link

“Femtosecond dynamics of photodetachment of the iodide anion in solution: resonant excitation into the charge-transfer-to-solvent state”, J. A. Kloepfer, V. H. Vilchiz, V. A. Lenchenkov, and S. E. Bradforth, Chemical Physics Letters 298, 120-8 (1998). link