Small-molecule organic solar cells with improved stability

被引：196

作者：

Song, QL

Li, FY

Yang, H

Wu, HR

Wang, XZ

Zhou, W

Zhao, JM

Ding, XM

Huang, CH

Hou, XY

机构：

[1] Fudan Univ, Surface Phys Lab, Natl Key Lab, Shanghai 200433, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 416卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2005.09.052

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A stable small-molecule organic photovoltaic device with structure of ITO\donor\acceptor\buffer\cathode is presented. A thin layer (similar to 60 angstrom) of tris-8-hydroxy-quinolinato aluminum (Alq(3)) instead of bathocuproine (BCP) is adopted as the buffer of the device, resulting in 150 times longer lifetime. The power conversion efficiency of the device is 2.11% under 75 MW/cm(2) AM1.5G simulated illumination, and no perceptible efficiency degradation is observed for long-term storage of the device in vacuum or nitrogen-filled glove box. More effective blocking of Alq(3) than BCP against diffusion of cathode atoms and permeation of oxygen and/or water molecules is considered as the main reason for the improved performance of the new device. (c) 2005 Elsevier B.V. All rights reserved.

引用

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页码：42 / 46

页数：5

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