有机N型掺杂热电材料 2014JACS.pdf

Communication pubs.acs.org/JACS Toward High Performance n‑Type Thermoelectric Materials by Rational Modification of BDPPV Backbones Ke Shi,† Fengjiao Zhang,‡ Chong-An Di,*,‡ Tian-Wei Yan,† Ye Zou,‡ Xu Zhou,† Daoben Zhu,‡ Jie-Yu Wang, *,† and Jian Pei*,† †Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China ‡Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China S *Supporting Information factors reaching 30 and 66 μW m−1 K−2, respectively. However, ABSTRACT: Three n -type polymers BDPPV, these materials are not amenable to solution-processing, severely ClBDPPV, and FBDPPV which exhibit outstanding restricting their extensive application. Recently, several solution- electrical conductivities when mixed with an n-type processed n-type organic TE materials were reported. Chabinyc dopant, N-DMBI ((4-(1,3-dimethyl-2,3-dihydro-1H- demonstrated that solution mixtures of P(NDIOD-T2) with benzoimidazol-2-yl)phenyl)dimethylamine), in solution. extrinsic dopants, N-DBI derivatives, achieved electrical High electron mobility and an efficient doping process conductivities of nearly 10−2 S cm−1 and power factors of up endow FBDPPV with the highest electrical conductivities