Structural Order in Bulk Heterojunction Films Prepared with Solvent Additives

被引:246
作者
Rogers, James T. [1 ,2 ]
Schmidt, Kristin [1 ,2 ]
Toney, Michael F. [3 ]
Kramer, Edward J. [1 ,2 ]
Bazan, Guillermo C. [1 ,2 ]
机构
[1] Univ Calif Santa Barbara, Dept Mat, Dept Chem, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Mat, Dept Biochem, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA
[3] Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA USA
关键词
POLYMER SOLAR-CELLS; PHOTOVOLTAIC CELLS; CHARGE-TRANSPORT; EFFICIENCY; NETWORK;
D O I
10.1002/adma.201003690
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Solvent additives are shown to drastically affect internal ordering of the polymeric component of bulk heterojunction solar cells. Grazing incidence wide angle X-ray scattering measurements reveal that additives affect polymeric crystallite type, perfection, orientation, and population within the film. Improvements in device performance that result from additive processing are well correlated with increases in the population of crystallites within the film of the type capable of pi-pi stacking.
引用
收藏
页码:2284 / +
页数:6
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