Low roll off radiation efficiency of charge transfer state excitons based on organic photovoltaic and electroluminescent integrated device

被引：23

作者：

Huang, Jiang ^{[1
]}

Qi, Yige ^{[1
]}

Wang, Hanyu ^{[1
]}

Yu, Junsheng ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Sch Optoelect Informat, Chengdu 610054, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 18期

基金：

美国国家科学基金会;

关键词：

POLYMER SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; ABSORPTION; TRIPLET;

D O I：

10.1063/1.4803924

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Organic photovoltaic and electroluminescent (EL) integrated devices were fabricated with a heterojunction structure consisting of Rubrene electron donor and fullerene electron acceptor. By using infrared transmission filter and near infrared detector, the ELCT signals of charge transfer state (CTS) excitons were separated from the light emission of singlet (ELSE) or triplet exciton. The EL external quantum efficiencies from pure CTS excitons exhibited ultra-low roll off characteristics. Meanwhile, an improved exponential model was proposed to accurately simulate the relationship between the light emission photons of CTS and singlet excitons versus applied bias, which illuminated the roll off of ELCT and ELSE. (C) 2013 AIP Publishing LLC.

引用

页数：5

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