Synthetic Approach for Enhancing Semiconductor Properties of Water-Borne DPP-Copolymer
Synthetic Approach for Enhancing Semiconductor Properties of Water-Borne DPP-Copolymer
复制标题
增强水性 DPP-共聚物半导体性能的合成方法
DOI：
10.1021/acs.chemmater.8b02085
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发表时间：
2018
影响因子：
8.6
通讯作者：
D. Chung
中科院分区：
文献类型：
--
作者：
Seong Hoon Yu;H. Song;Jangwhan Cho;Soon;Yun‐Hi Kim;D. Chung
We introduce a synthetic approach to enhance coalescence phenomenon during solidification of water-borne colloids so that thin, even, and continuous film morphology of polymer semiconductors can be realized. From the theoretical study of complex colloids, we show that small-sized and uniform colloid particles are essential to minimize depletion contact energy between colloid particles and thus to enhance coalescence. Therefore, the newly synthesized polymer semiconductor in this study is designed with the aim of better molecular affinity with surfactants, so that phase transfer of polymer semiconductors from organic phase to water phase can proceed more efficiently during mini-emulsion synthesis. This is achieved by substituting a Si atom to the branching C atom of the alkyl solubilizing group of a conventional donor–acceptor polymer semiconductor. Such a chemical modification increases the volumetric portion of hydrophobic alkyl chains and thus enables higher solubility as well as higher hydrophobicity, ...
