Charge transfer reactions in near IR absorbing small molecule solution processed organic bulk-heterojunction solar

被引:36
作者
Sanchez-Diaz, Antonio [1 ]
Pacios, Roberto [2 ]
Munecas, Udane [2 ]
Torres, Tomas [3 ,4 ]
Palomares, Emilio [1 ]
机构
[1] Inst Chem Res Catalonia ICIQ, E-43007 Tarragona, Spain
[2] IKERLAN S Coop, Dept Microsyst, Arrasate Mondragon 20500, Spain
[3] Univ Autonoma Madrid, Dept Quim Organ, E-28049 Md, Spain
[4] Ciudad Univ Cantoblanco, IMDEA Nanociencia, Fac Ciencias, Madrid 28049, Spain
关键词
Organic solar cells; Solution processed; Small molecule solar cells; Recombination kinetics; Near IR absorption; Bulk heterojunction; LOW-BAND-GAP; PHOTOVOLTAIC CELLS; DIELECTRIC-PROPERTIES; POLYMER; EFFICIENT; RECOMBINATION; FILMS;
D O I
10.1016/j.orgel.2010.11.014
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have measured the charge transfer processes on near IR small molecule solution processes solar cells under working conditions. The results show that there are two different behavior, for the device under working conditions, controlled by the intrinsic properties of the organic bulk-heterojunction phase to store charges at the different organic materials. Furthermore, our recombination kinetic studies show the origin of the photovoltage on these thin organic devices (80 nm thick) and the reason for the difference between the observed open circuit cell potential and the theoretical expected value based on the LUM-OPCBM-HOMO phthalocyanine difference. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:329 / 335
页数:7
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