Spin conversion and electric field effect on photoluminescence in amorphous molecular semiconductors doped with ionic dyes

被引：26

作者：

Davidenko, NA

Ishchenko, AA

机构：

[1] Kiev Natl Univ, UA-252033 Kiev, Ukraine

[2] Natl Acad Sci Ukraine, Inst Organ Chem, UA-253094 Kiev, Ukraine

来源：

CHEMICAL PHYSICS | 1999年 / 247卷 / 02期

关键词：

amorphous molecular semiconductors; electron-hole pairs; photoconductivity; photoluminescence; intercombination conversion;

D O I：

10.1016/S0301-0104(99)00186-X

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：

For poly-N-epoxypropylcarbazole films doped with a cationic polymethine dye, the photoconductivity and the effect of an external electric field on photoluminescence intensity in the dopant absorption region have been found to depend on the nature of a colorless dye counter-ion. These effects have been accounted for by a changed probability of an intersystem crossing in dye ion pairs and photogenerated electron-hole pairs. The spin conversion rate has been related to the degree of photoluminescence quenching in an external electric field. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：237 / 243

页数：7

共 24 条

[1]

Buchachenko A. L, 1993, CHEM GENERATION RECE

[2] Spin catalysis of chemical reactions [J].