Optical Properties of Dibenzo[d,d′]thieno[3,2-b;4,5-b′]dithiophene Monocrystals: The Effect of Intermolecular Interactions

被引：5
|
作者：
Alessandrini, Laura [1 ]
Braga, Daniele [1 ,2 ]
Jaafari, Abdelhafid
Miozzo, Luciano [2 ]
Mora, Stefano [1 ]
Silvestri, Leonardo [1 ]
Tavazzi, Silvia
Yassar, Abderrahim [2 ]
机构：
[1] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy
[2] Univ Paris 07, ITODYS, F-75205 Paris, France
来源：
JOURNAL OF PHYSICAL CHEMISTRY A | 2011年 / 115卷 / 03期
关键词：
STACKED ORGANIC SEMICONDUCTOR; PENTACENE; THIOPHENE; HETEROACENES; CRYSTALS; ACENES; RAMAN;
D O I：
10.1021/jp1052826
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：
The polarized UV-visible absorption spectra of dibenzo[d,d`]thieno[3,2-b;4,5-b`]dithiophene single crystals are reported and interpreted to definitively attribute the observed bands and their polarizations. The results provide information on the intermolecular interactions and on the aggregation in the condensed phase, which can be of either herringbone- or H-type, depending on the electronic transition taken into considerations, with consequences on the order and polarization of the absorption bands. A relatively easy method is also discussed to obtain information on the structural/morphological properties of different types of samples, including thin films, which have been recently proposed for high-performance organic film-effect transistors for their high ionization potential and photostability.
引用
收藏
页码：225 / 231
页数：7
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