Polymorphs of α-sexithiophene probed by lattice phonon Raman microscopy

被引：26

作者：

Brillante, Aldo

Bilotti, Ivano

Biscarini, Fabio

Della Valle, Raffaele Guido

Venuti, Elisabetta

机构：

[1] Univ Bologna, Dipartimento Chim Fis & Inorgan, I-40136 Bologna, Italy

[2] Univ Bologna, INSTM, UdR Bologna, I-40136 Bologna, Italy

[3] CNR, Inst Study Nanostructured Mat, Bologna Div, I-40129 Bologna, Italy

来源：

CHEMICAL PHYSICS | 2006年 / 328卷 / 1-3期

关键词：

sexithiophene; polymorphism; Raman phonon spectra; lattice dynamics; organic semiconductors; confocal microscopy;

D O I：

10.1016/j.chemphys.2006.06.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report for the first time lattice phonon Raman spectra of the organic semiconductor alpha-sexithiophene (T6) measured with a Raman microprobe technique. We identify spectroscopically two polymorphs, as expected from available structural diffraction studies. Polarized spectra were recorded for symmetry assignment. A comparison of experimental data with Quasi Harmonic Lattice Dynamics calculations, performed starting from the experimental X-ray structures, is given. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：125 / 131

页数：7

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