期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 14, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202200221
关键词
Charge Transport; Conducting Polymers; Electrical Conductivity; Host-Dopant Miscibility; n-Doping
资金
- National Key Research and Development Program of China [2017YFA0204701]
- National Natural Science Foundation of China [22020102001, 21790360]
- Beijing Outstanding Young Scientist Program [BJJWZYJH01201910001001]
- Opening Project of Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University [JDGD-202004]
This study presents a strategy for achieving efficient charge transport and high doping compatibility in n-doped conjugated polymers. By using disorder side-chains, the issue of compatibility is addressed, allowing for the accommodation of molecular dopants without compromising the original chain packing and charge transport channels.
Strong interchain interactions of conjugated polymers usually result in poor miscibility with molecular dopants, limiting the doping efficiency because of uncontrolled phase separation. We have developed a strategy to achieve efficient charge-transport and high doping miscibility in n-doped conjugated polymers. We solve the miscibility issue through disorder side-chains containing dopants better. Systemic structural characterization reveals a farther side-chain branching point will lead to higher disorders, which provides appropriate sites to accommodate extrinsic molecular dopants without harming original chain packings and charge-transport channels. Therefore, better sustainability of solid-state microstructure is obtained, yielding a stable conductivity even when overloading massive dopants. This work highlights the importance of realizing high host-dopant miscibility in molecular doping of conjugated polymers.
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