The role of initial and final states in molecular spectroscopies.
The role of initial and final states in molecular spectroscopies.
复制标题
初始态和最终态在分子光谱中的作用
DOI:
10.1039/c8cp07318j
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
T. Fritz
中科院分区:
文献类型:
--
作者:
T. Kirchhuebel;O. L. A. Monti;T. Munakata;S. Kera;R. Forker;T. Fritz
Interpreting experimental spectra of thin films of organic semiconductors is challenging, and understanding the relationship between experimental data obtained by different spectroscopic techniques requires a careful consideration of the initial and final states for each process. The discussion of spectroscopic data is frequently mired in confusion that originates in overlapping terminology with however distinct meaning in different spectroscopies. Here, we present a coherent framework that is capable of treating on equal footing most spectroscopies commonly used to investigate thin films of organic semiconductors. We develop a simple model for the expected energy level positions, as obtained by common spectroscopic techniques, and relate them to the energies of molecular states. Molecular charging energies in photoionization processes, as well as adsorption energies and the screening of molecular charges due to environmental polarization, are taken into account as the main causes for shifts of the measured spectroscopic features. We explain the relationship between these quantities, as well as with the transport gap, the optical gap and the exciton binding energy. Our considerations serve as a model for weakly interacting systems, e.g., various organic molecular crystals, where wave function hybridizations between adjacent molecules are negligible.
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DOI:
10.1063/1.4818541
发表时间:
2013
期刊:
The Journal of chemical physics
影响因子:
--
作者:
M. Marks;S. Sachs;C. H. Schwalb;A. Schöll;U. Höfer
通讯作者:
U. Höfer
DOI:
10.1063/1.3180818
发表时间:
2009
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Jens Sauther;J. Wüsten;S. Lach;C. Ziegler
通讯作者:
C. Ziegler
影响因子:
3.7
作者:
Gruenewald, Marco;Sauer, Christoph;Fritz, Torsten
通讯作者:
Fritz, Torsten
影响因子:
3.2
作者:
M. Gruenewald;K. Wachter;M. Meissner;M. Kozlik;R. Forker;T. Fritz
通讯作者:
T. Fritz
影响因子:
--
作者:
Z. Soos;E. Tsiper
通讯作者:
E. Tsiper