The role of ordered block copolymer morphology in the performance of organic/inorganic photovoltaic devices

被引:16
作者
Gratt, JA
Cohen, RE
机构
[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
[2] MIT, Program Polymer Sci & Technol, Cambridge, MA 02139 USA
关键词
block copolymers; photoroltaics;
D O I
10.1002/app.13526
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A triblock copolymer consisting of hole-transport, electron-transport, and nanocluster-binding moieties was used in the fabrication of photovoltaic test devices. Depending on the casting solvent used in the device fabrication process, the morphology of the block copolymer in the devices was either an ordered, perpendicular cylindrical phase or a uniformly mixed homogeneous material. The photovoltaic action spectra of these two device types revealed clearly that the charge collection efficiency was influenced favorably by the microphase separation of the ordered system. Underlying mechanisms for these observations are discussed. (C) 2004 Wiley Periodicals, Inc.
引用
收藏
页码:3362 / 3368
页数:7
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