Silicon Atom Substitution Enhances Interchain Packing in a Thiophene-Based Polymer System

被引:331
作者
Chen, Hsiang-Yu [1 ]
Hou, Jianhui [1 ]
Hayden, Amy E. [2 ]
Yang, Hoichang [3 ]
Houk, K. N. [2 ]
Yang, Yang [1 ]
机构
[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
[3] Inha Univ, Dept Adv Fiber Engn, Inchon 402751, South Korea
基金
美国国家科学基金会; 美国能源部;
关键词
SOLAR-CELLS; ELECTRONIC-STRUCTURE; MOBILITY;
D O I
10.1002/adma.200902469
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new silole-containing low-bandgap polymer is synthesized by replacing the 5-position carbon of PCPDTBT with a silicon atom (PSBTBT, see figure). Through experiments and computational calculations, we show that the material properties, particular the packing of polymer chains, can be altered significantly. As a result, the polymer changes from amorphous to highly crystalline with the replacement of the silicon atom.
引用
收藏
页码:371 / +
页数:6
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