Field-Independent Charge Photogeneration in PCPDTBT/PC70BM Solar Cells

被引：81

作者：

Jamieson, Fiona C. ^{[1
,2
]}

Agostinelli, Tiziano ^{[1
,2
]}

Azimi, Hamed ^{[3
]}

Nelson, Jenny ^{[1
,2
]}

Durrant, James R. ^{[1
,2
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England

[3] Konarka Technol Austria, A-4040 Linz, Austria

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2010年 / 1卷 / 23期

基金：

英国工程与自然科学研究理事会;

关键词：

TRANSFER EXCITONS; TRANSFER STATES; PHOTOCURRENT; DISSOCIATION; ELECTROLUMINESCENCE; RECOMBINATION; EFFICIENCY; DYNAMICS; SYSTEMS;

D O I：

10.1021/jz1013517

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：

Transient absorption spectroscopy has been used to investigate charge photogeneration in organic solar cells based upon PCPDTBT/PC70BM (poly-[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']-dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)]/[6,6]-phenyl-C-71-butyric acid methyl ester) photoactive layers as a function of externally applied bias. We find that the yield of dissociated polarons is independent of applied bias in these devices.

引用

页码：3306 / 3310

页数：5

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