EVIDENCE FOR EXCITON CONFINEMENT IN CRYSTALLINE ORGANIC MULTIPLE QUANTUM-WELLS

被引：239

作者：

SO, FF ^{[1
]}

FORREST, SR ^{[1
]}

机构：

[1] UNIV SO CALIF,CTR PHOTON TECHNOL,DEPT MAT SCI,LOS ANGELES,CA 90089

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.66.2649

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Multiple-quantum-well structures based on two crystalline organic semiconductors, namely, 3,4,9,10 perylenetetracarboxylic dianhydride and 3,4,7,8 naphthalenetetracarboxylic dianhydride, have been grown by organic molecular-beam deposition. Both optical-absorption and time-resolved photoluminescence measurements reveal a significant effect on the binding energy and the radiative recombination probability of excitons due to localization of carriers. Variational calculations of the ground-state exciton energy in quantum wells have been done, and the results agree with the experimental data. This provides evidence for exciton confinement in organic quantum-well structures.

引用

页码：2649 / 2652

页数：4

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