MISC

2005年4月

Density of states of the lowest exciton band and the exciton bandwidth in coronene single crystals

JOURNAL OF LUMINESCENCE
  • R Totoki
  • ,
  • T Aoki-Matsumoto
  • ,
  • K Mizuno

112
1-4
開始ページ
308
終了ページ
311
記述言語
英語
掲載種別
DOI
10.1016/j.jlumin.2004.09.096
出版者・発行元
ELSEVIER SCIENCE BV

The thermo-absorption spectra of coronene single crystals were investigated over the temperature range between 193 and 287 K. The density of states and the exciton bandwidth of the lowest exciton band were obtained from the thermo-absorption spectra for the 0-1 absorption band region. The density of states function of the lowest exciton band, we observed in coronene has double peaks, as is expected for the one-dimensional model. The peak-to-peak energy separation gives the exciton a bandwidth of 490 cm(-1). The bandwidth obtained (490 cm(-1)) is larger compared with the magnitude 370 cm(-1) reported for coronene at 10 K. This difference can be explained in terms of the structural phase change that occurs at 140-180 K. (c) 2004 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 9

リンク情報
DOI
https://doi.org/10.1016/j.jlumin.2004.09.096
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000228439600071&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.jlumin.2004.09.096
  • ISSN : 0022-2313
  • Web of Science ID : WOS:000228439600071

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