Nanoscale size effects on photoconductivity of semiconducting polymer thin films

被引：36

作者：

Zhang, XJ

Jenekhe, SA

Perlstein, J

机构：

[1] UNIV ROCHESTER,DEPT CHEM ENGN,ROCHESTER,NY 14627

[2] UNIV ROCHESTER,CTR PHOTOINDUCED CHARGE TRANSFER,ROCHESTER,NY 14627

来源：

CHEMISTRY OF MATERIALS | 1996年 / 8卷 / 08期

关键词：

D O I：

10.1021/cm9600384

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：

Bilayer polymer photoreceptors containing a trap-free tri-p-tolylamine-doped polycarbonate (TTA:PC) layer and a conjugated polymer layer are used to study nanoscale size effects in electronic polymers. A 3-fold enhancement of photogeneration quantum efficiency is observed as the thickness of poly(2,5-pyridylenebenzo-bisthiazole) (PPyBT) is reduced from 100 to 10 nm. The nanometer size effects originate from the small exciton diffusion lengths and the interfacial nature of the photocarrier generation.

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页码：1571 / &

页数：5

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