研究领域

Experimental Physical Chemistry/Ultrafast Spectroscopy

Dr. Bragg’s group is interested in the spectroscopy and ultrafast dynamics of poly-conjugated molecules that are used increasingly in material applications.

近期论文

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Guo, X.; Zhou, J.; Siegler, M. A.; Bragg, A. E.; Katz, H. E. Visible-Light-Triggered Molecular Photoswitch Based on Reversible E/Z Isomerization of a 1,2-Dicyanoethene Derivative. Angew. Chem. Int. Ed. 2015, n/a – n/a. Donohoo-Vallett, P. J.; Bragg, A. E. π-Delocalization and the Vibrational Spectroscopy of Conjugated Materials: Computational Insights on Raman Frequency Dispersion in Thiophene, Furan, and Pyrrole Oligomers. J. Phys. Chem. B., ASAP Magnanelli, T. J.; Bragg, A. E. Time-Resolved Raman Spectroscopy of Polaron Pair Formation in Poly(3-hexylthiophene) Aggregates. J. Phys. Chem. Lett. 2015, 6, 438-445 Yu, W.; Donohoo-Vallett, P. J.; Zhou, J.; Bragg, A. E. Ultrafast Photo-Induced Nuclear Relaxation of a Conformationally Disordered Conjugated Polymer Probed with Transient Absorption and Femtosecond Stimulated Raman Spectroscopies. The Journal of Chemical Physics 2014, 141, 044201. Molloy, M. C.; Snyder, J.; Bragg, A. E. Structural and Solvent Control of Nonadiabatic Photochemical Bond Formation: Phoyocyclization of o-Terphenyl in Solution. J. Phys. Chem. A 2014, 118(22), 3913-3925 Smith, M. C.; Snyder, J. A.; Streifel, B. C.; Bragg, A. E. Ultrafast Excited-State Dynamics of Ortho-Terphenyl and 1,2-Diphenylcyclohexene: The Role of "Ethylenic Twisting" in the Nonadiabatic Photocyclization of Stilbene Analogs. J. Phys. Chem. Lett. 2013, 4, 1895–1900Yu, W.; Zhou, J.; Bragg, A. E. Exciton Conformational Dynamics of Poly(3-Hexylthiophene) (P3HT) in Solution from Time-Resolved Resonant-Raman Spectroscopy. J. Phys. Chem. Lett. 2012, 3, 1321–1328.