Converting Wannier into Frenkel excitons in an inorganic/organic hybrid semiconductor nanostructure

被引：109

作者：

Blumstengel, S. ^{[1
]}

Sadofev, S. ^{[1
]}

Xu, C. ^{[1
]}

Puls, J. ^{[1
]}

Henneberger, F. ^{[1
]}

机构：

[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.97.237401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electronic coupling between Wannier and Frenkel excitons in an inorganic/organic semiconductor hybrid structure is experimentally observed. Time-resolved photoluminescence and excitation spectroscopy directly demonstrate that electronic excitation energy can be transferred with an efficiency of up to 50% from an inorganic ZnO quantum well to an organic [2,2-p-phenylenebis-(5-phenyloxazol), alpha-sexithiophene] overlayer. The coupling is mediated via dipole-dipole-interaction analog to the Forster transfer in donor-acceptor systems.

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页数：4

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