DIFFUSION LENGTH AND LIFETIME OF TRIPLET EXCITONS AND CRYSTAL ABSORPTION COEFFICIENT IN TETRACENE DETERMINED FROM PHOTOCURRENT MEASUREMENTS

被引：31

作者：

VAUBEL, G

KALLMANN, H

机构：

[1] Technische Hochschule München, Physik-Department

来源：

PHYSICA STATUS SOLIDI | 1969年 / 35卷 / 02期

关键词：

D O I：

10.1002/pssb.19690350228

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

By comparing the decrease of the i+ and i− currents as function of the exciting wavelength and from the maximum of the i− current the crystal absorption coefficient of tetracene can be determined. With the penetration depth of the radiation thus known the diffusion length and lifetime of triplet excitons are determined from the dependence of the currents on the wavelengths. The diffusion length is found to be (0.4 ± 0.2) μm, the lifetime about 100 μs. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：789 / &