Absorption and emission of excitons in thin PTCDA films and PTCDA/Alq3 multilayers

被引：0
|
作者：
Wagner, HP [1 ]
DeSilva, A [1 ]
Gangilenka, VR [1 ]
Kampen, TU [1 ]
机构：
[1] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA
来源：
PHYSICS OF SEMICONDUCTORS, PTS A AND B | 2005年 / 772卷
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D O I：
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中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate the exciton absorption and emission in 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) thin films and PTCDA/aluminium-tris-hydroxyqinoline (Alq(3)) multilayers in the temperature range from 10 to 300 K. In the multilayers a strong recombination band is observed at 1.63 eV. This band is attributed to charge transfer transitions between stacked PTCDA molecules that are compressed by strain fields.
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页码：1097 / 1098
页数：2
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