Operation of a reversed pentacene-fullerene discrete heterojunction photovoltaic device 10.1063/1.2713345

被引：37

作者：

Nanditha, D. M. ^{[1
]}

Dissanayake, M. ^{[1
]}

Hatton, Ross A. ^{[1
]}

Curry, Richard J. ^{[1
]}

Silva, S. R. P. ^{[1
]}

机构：

[1] Univ Surrey, Adv Technol Inst, NanoElect Ctr, Guildford GU2 7XH, Surrey, England

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2713345

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photoresponse of reversed bilayer organic photovoltaic device based on pentacene and C-60 is examined, and the mechanism of photocurrent generation is shown to be different to that in conventional heterojunction devices, with free charge carriers generated at the electrode-organic interfaces rather than the organic heterojunction. This hypothesis is tested with silver nanoclusters incorporated at the organic heterojunction to quench excitons and facilitate recombination of free charge carriers, which shows a predicted increase in J(sc). The large V-oc in this reversed cell structure is also rationalized in the context of the model proposed. (c) 2007 American Institute of Physics.

引用

页数：3