Resonance Raman Characterization of Tetracene Monomer and Nanocrystals: Excited State Lattice Distortions With Implications For Efficient Singlet Fission

Autor: Richard A. Mathies, Tonatiuh Rangel, Scott R. Ellis, Florian Brown-Altvater, Jeffrey B. Neaton, D. Dietze

Publikováno v: The Journal of Physical Chemistry A. 123:3863-3875

The characterization of specific phonon modes and exciton states that lead to efficient singlet fission (SF) may be instrumental in the design of the next generation of high-efficiency photovoltaic devices. To this end, we analyze the absolute resona

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27e00a43400cee8f62df1d2ceaf5d8ea
https://doi.org/10.1021/acs.jpca.9b02986

Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite

Autor: Sergei Tretiak, Richard A. Mathies, Jeffrey B. Neaton, Peidong Yang, Amanda Neukirch, Scott R. Ellis, D. Dietze, Sebastian E. Reyes-Lillo, Minliang Lai, Myeongkee Park

Publikováno v: Nature communications, vol 9, iss 1
Nature Communications
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Park, M; Neukirch, AJ; Reyes-Lillo, SE; Lai, M; Ellis, SR; Dietze, D; et al.(2018). Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite. Nature Communications, 9(1). doi: 10.1038/s41467-018-04946-7. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/2qn8d4x8

Hybrid organic–inorganic perovskites have attractive optoelectronic properties including exceptional solar cell performance. The improved properties of perovskites have been attributed to polaronic effects involving stabilization of localized charg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::367b2cb84f3ed91fd3e61e348751faec
https://doi.org/10.1038/s41467-018-04946-7

Femtosecond Stimulated Raman Spectroscopy

Autor: D. Dietze, Richard A. Mathies

Publikováno v: Chemphyschem : a European journal of chemical physics and physical chemistry. 17(9)

Femtosecond stimulated Raman spectroscopy (FSRS) is an ultrafast nonlinear optical technique that provides vibrational structural information with high temporal (sub-50 fs) precision and high spectral (10 cm(-1) ) resolution. Since the first full dem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf05ac61dc9ee1d612f2d711e0fcced0
https://pubmed.ncbi.nlm.nih.gov/26919612

Guided Modes in Layered Semiconductor Terahertz Structures

Autor: Karl Unterrainer, Juraj Darmo, D. Dietze

Publikováno v: IEEE Journal of Quantum Electronics. 46:618-625

In this paper, we present a simple and robust method for calculating the dispersion relation of guided modes in layered media with conducting interfaces in the terahertz frequency range. The procedure is based on the transfer matrix method and utiliz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2cf89bd01784d1b53c617e8bde7c23e
https://doi.org/10.1109/jqe.2010.2047379

CEP-stable tunable THz-emission originating from laser-waveform-controlled sub-cycle plasma-electron bursts

Autor: T, Balčiūnas, D, Lorenc, M, Ivanov, O, Smirnova, A M, Zheltikov, D, Dietze, K, Unterrainer, T, Rathje, G G, Paulus, A, Baltuška, S, Haessler

Publikováno v: Optics express. 23(12)

We study THz-emission from a plasma driven by an incommensurate-frequency two-colour laser field. A semi-classical transient electron current model is derived from a fully quantum-mechanical description of the emission process in terms of sub-cycle f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::5921a5bf16d2c9dabc25d019d867285a
https://pubmed.ncbi.nlm.nih.gov/26193509