Probing a molecular interface in a functioning organic diode

被引：10

作者：

Lee, YJ

Park, SJ

Gesquiere, AJ

Barbara, PF ^{[1
]}

机构：

[1] Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA

[2] Univ Texas, Ctr Nano & Mol Sci & Technol, Austin, TX 78712 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2006975

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of hole-polaron charging at a hole-injection/hole-transport interface within a functioning organic diode was investigated by single molecule spectroscopy and associated modeling. Efficient quenching of both singlet and triplet excitons by hole polarons is observed at high forward bias due to a buildup of interfacial polaron density. Additionally, for some diodes, an unexpected quenching process was observed at reverse bias, which is ascribed to hole charging of the interface due to the leakage current. (c) 2005 American Institute of Physics.

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页数：3

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