Raman polarization studies of highly oriented organic thin films

Raman polarization studies of highly oriented organic thin films
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高取向有机薄膜的拉曼偏振研究

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发表时间：
2009
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通讯作者：
T. Chassé
T. Chassé
中科院分区：
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文献类型：
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作者：
V. Presser;B. Schuster;M. Casu;U. Heinemeyer;F. Schreiber;K. Nickel;T. Chassé

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In this work we report on the capability of polarized Raman spectroscopy to investigate the structure of thin organic films. Diindenoperylene (DIP) thin films on (1 × 1)-rutile(110) were prepared via organic molecular beam deposition (OMBD). Raman spectra of DIP thin films showed several strong Raman modes in the wavenumber region from 1200 to 1650 cm−1. The Ag mode at 1284 cm−1 shows two contributions, thereby indicating the coexistence of at least two DIP film structures. Polarized Raman spectroscopy was applied to characterize the molecular orientation and the dominance of the σ-configuration (i.e. upright standing DIP molecules) was found. Copyright © 2009 John Wiley & Sons, Ltd.