The physical meaning of charge extraction by linearly increasing voltage transients from organic solar cells

被引：51

作者：

Hanfland, Robert ^{[1
,2
,3
]}

Fischer, Martin A. ^{[1
]}

Bruetting, Wolfgang ^{[2
]}

Wuerfel, Uli ^{[1
,4
]}

MacKenzie, Roderick C. I. ^{[3
,5
]}

机构：

[1] Fraunhofer Inst Solar Energy Syst, D-79110 Freiburg, Germany

[2] Univ Augsburg, Inst Phys, D-86159 Augsburg, Germany

[3] Univ Freiburg, FRIAS, D-79104 Freiburg, Germany

[4] Univ Freiburg, Mat Res Ctr, D-79104 Freiburg, Germany

[5] Univ Nottingham, Fac Engn, Nottingham NG7 2RD, England

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 06期

关键词：

DENSITY-OF-STATES; CARRIER MOBILITY; RECOMBINATION; TRANSPORT;

D O I：

10.1063/1.4818267

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Carrier mobility in organic solar cells is almost exclusively determined with the Charge Extraction by Linearly Increasing Voltage (CELIV) technique; indeed much of our understanding of the recombination and charge transport mechanisms in organic solar cells is based on CELIV measurements. However, since the conception of the CELIV method, our understanding of organic semiconductors has significantly advanced. In this work, we critically examine the CELIV methods ability to provide accurate material data in the light of recent advances in our understanding of trap states and their influence on mobility in organic semiconductors. We then apply this knowledge to understand the mechanisms responsible for degradation in organic solar cells. (C) 2013 AIP Publishing LLC.

引用

页数：4

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