Electric field-induced structural changes in pentacene-based organic thin-film transistors studied by in situ micro-Raman spectroscopy

H. L. Cheng, W. Y. Chou, C. W. Kuo, F. C. Tang, Y. W. Wang

研究成果: Article同行評審

41 引文 斯高帕斯(Scopus)

摘要

We have investigated the electric field-induced microscopic structural changes in polycrystalline pentacene-based organic transistors by using in situ micro-Raman spectroscopy. Extra vibrational modes resulting from molecular coupling effect in pentacene film were studied. The herringbone packing of pentacene molecules in solid film is affected by external field and the process is proven to be partially irreversible. In the meantime, in-phase coupling of the C-H bending mode was found to be highly related to the carrier transport of pentacene film. Obtained results suggest that optimal intermolecular π -orbital overlap of pentacene molecules is still a critical factor impacting the carrier transportation for pentacene film featuring polycrystalline morphology.

原文English
文章編號161918
期刊Applied Physics Letters
88
發行號16
DOIs
出版狀態Published - 2006 四月 17

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

指紋

深入研究「Electric field-induced structural changes in pentacene-based organic thin-film transistors studied by in situ micro-Raman spectroscopy」主題。共同形成了獨特的指紋。

引用此