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Universal selection rule for surfactants used in miniemulsion processes for eco-friendly and high performance polymer semiconductors
Energy & Environmental Science ( IF 32.5 ) Pub Date : 2017-08-31 00:00:00 , DOI: 10.1039/c7ee01943b
Jangwhan Cho 1, 2, 3, 4 , Seongwon Yoon 1, 2, 3, 4 , Kyu Min Sim 1, 2, 3, 4 , Yong Jin Jeong 4, 5, 6, 7, 8 , Chan Eon Park 4, 5, 6, 7, 8 , Soon-Ki Kwon 4, 9, 10, 11 , Yun-Hi Kim 4, 10, 11, 12 , Dae Sung Chung 1, 2, 3, 4
Affiliation  

Commercial interest in the environmentally friendly processing of polymer semiconductors is on the rise. To reduce noxious solvent use and to realize water-borne colloids of polymer semiconductors, we developed a universal and eco-friendly miniemulsion process to satisfy four essential criteria: (1) efficient emulsification for synthesizing small and uniform polymer semiconductor particles, (2) efficient coalescence of particles to yield high quality thin films with low roughness and high fill-factors, (3) efficient removal of residual surfactants, and (4) high ordering of polymers within particles. We screened various surfactants to find conditions that satisfied the suggested selection rules regardless of the charge polarity and molecular structure of the polymer semiconductor. Our universal method can be applied to first-generation polythiophene derivatives as well as to the latest p-type, n-type and ambipolar polymers with planar backbones and high charge carrier mobility. Using these results, we fabricated for the first time a high-performance complementary inverter and a photodiode using water as a processing solvent.

中文翻译:

环保和高性能聚合物半导体微乳液工艺中使用的表面活性剂的通用选择规则

对聚合物半导体的环境友好处理的商业兴趣正在上升。为了减少有害溶剂的使用并实现聚合物半导体的水性胶体,我们开发了一种通用且环保的微乳液工艺,该工艺满足四个基本标准:(1)有效乳化以合成小的且均匀的聚合物半导体颗粒,(2)高效粒子聚结以产生具有低粗糙度和高填充因子的高质量薄膜,(3)有效去除残留的表面活性剂,以及(4)粒子内的聚合物有序化。我们筛选了各种表面活性剂,以找到满足建议选择规则的条件,而与聚合物半导体的电荷极性和分子结构无关。我们的通用方法可应用于第一代聚噻吩衍生物以及具有平面主链和高电荷载流子迁移率的最新p型,n型和双极性聚合物。利用这些结果,我们首次使用水作为加工溶剂制造了高性能互补逆变器和光电二极管。
更新日期:2017-11-08
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