Photocurrent in bulk heterojunction solar cells with similar electron and hole mean free path

被引：9

作者：

Coutinho, Douglas Jose ^{[1
]}

Faria, Roberto Mendonca ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 22期

基金：

巴西圣保罗研究基金会;

关键词：

CHARGE-TRANSFER STATE; PHOTOVOLTAIC DEVICES; RECOMBINATION; DISSOCIATION; EFFICIENCY; FIELD; GENERATION; TRANSPORT; VOLTAGE;

D O I：

10.1063/1.4834955

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present photocurrents at several temperatures carried out in a bulk heterojunction photovoltaic device. To explain the results, we developed an analytical model assuming non-injecting contacts and equal mean free paths for electrons and holes. The fitting of the equation to the experimental data provided the temperature evolution of the charge transfer state dissociation probability (P) and mu tau, where mu is the charge carrier mobility and tau is the charge carrier lifetime. The photocurrent expression tends towards a saturation value of eGPL for high electric fields, where GP is the generation rate of charge carriers. (C) 2013 AIP Publishing LLC.

引用

页数：4

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