Resonant Raman spectroscopy of organic semiconductors

被引：0

作者：

Scholz, R ^{[1
]}

Kobitski, AY

Kampen, TU

Schreiber, M

Zahn, DRT

Jungnickel, G

Frauenheim, T

机构：

[1] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany

[2] Univ Gesamthsch Paderborn, Fachbereich Phys, D-33098 Paderborn, Germany

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 2000年 / 221卷 / 01期

关键词：

D O I：

10.1002/1521-3951(200009)221:1<541::AID-PSSB541>3.0.CO;2-Y

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Epitaxial films of a prototype organic semiconductor, 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) are investigated with resonant Raman spectroscopy and density functional calculations. It is shown that the resonant Raman spectra are mainly determined by the vibrational properties of an isolated molecule, and the pronounced subbands in the absorption spectra of dissolved PTCDA molecules can be related to elongations of the Raman-active breathing modes between the ground state and the relaxed excited state.

引用

页码：541 / 544

页数：4

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