Increasing the open circuit voltage of bulk-heterojunction solar cells by raising the LUMO level of the acceptor

被引：361
作者：
Kooistra, Floris B.
Knol, Joop
Kastenberg, Fredrik
Popescu, Lacramioara M.
Verhees, Wiljan J. H.
Kroon, Jan M.
Hummelen, Jan C.
机构：
[1] Univ Groningen, Mat Sci CtrPlus, NL-9747 AG Groningen, Netherlands
[2] Solar Energy, Energy Res Ctr Netherlands ECN, NL-1755 ZG Petten, Netherlands
来源：
ORGANIC LETTERS | 2007年 / 9卷 / 04期
关键词：
D O I：
10.1021/ol062666p
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
We report the synthesis, characterization, and electrochemical properties of ten new fullerene derivatives for usage in organic solar cells. The phenyl ring of PCBM was substituted with electron-donating and electron-withdrawing substituents to study their influence on the LUMO level of the parent fullerene. We varied the LUMO level over a range of 86 mV and show a small but significant change of the open circuit voltage upon application in MDMO-PPV:methanofullerene bulk-heterojunction photovoltaic cells.
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收藏
页码：551 / 554
页数：4
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