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A crosslinked polymer as dopant-free hole-transport material for efficient n-i-p type perovskite solar cells

Journal of Energy Chemistry 2021年第4期30卷 211-218页

作者： Linqin Wang Fuguo Zhang Tianqi Liu Wei Zhang Yuanyuan Li Bin Cai Lanlan He Yu Guo Xichuan Yang Bo Xu James M.Gardner Lars Kloo Licheng Sun Organic Chemistry Centre of Molecular DevicesDepartment of ChemistryKTH Royal Institute of TechnologySE-10044 StockholmSweden Applied Physical Chemistry Centre of Molecular DevicesDepartment of ChemistryKTH Royal Institute of TechnologySE-10044 StockholmSweden Wallenberg Wood Science Centre Department of Fibre and Polymer TechnologyKTH Royal Institute of TechnologySE-10044 StockholmSweden State Key Laboratory of Fine Chemicals Institute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian 116024LiaoningChina

A new crosslinked polymer,called P65,with appropriate photo-electrochemical,opto-electronic,and thermal properties,has been designed and synthesized as an efficient,dopant-free,hole-transport material(HTM)for n-i-p type planar perovskite solar cells(PSCs).P65 is obtained from a low-cost and easily synthesized spiro[fluorene-9,90-xanthene]-30,60-diol(SFX-OH)-based monomer X65 through a freeradical polymerization *** combination of a three-dimensional(3 D)SFX core unit,holetransport methoxydiphenylamine group,and crosslinked polyvinyl network provides P65 with good solubility and excellent film-forming *** employing P65 as a dopant-free hole-transport layer in conventional n-i-p type PSCs,a power conversion efficiency(PCE)of up to 17.7%is *** the best of our knowledge,this is the first time a 3 D,crosslinked,polymeric dopant-free HTM has been reported for use in conventional n-i-p type *** study provides a new strategy for the future development of a 3 D crosslinked polymeric dopant-free HTM with a simple synthetic route and low-cost for commercial,large-scale applications in future PSCs.

关键词： Perovskite solar cell Hole-transport material Dopant-free crosslinked polymer Spiro[fluorene-9,9’-xanthene](SFX)

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SYNTHESIS　AND　FLUORESCENCE　STUDY　OF　St／DVB　COpolymerS　LABELLED　WITH　PYRENE　GROUPS

引用

Chinese Journal of Reactive polymers 1995年第1期4卷 90-98页

作者： Wang Guochang Liang Yuanfong Gao Huan Liang Lijun He Binglin Chen liusheng Du Jinhuan State Key Laboratory of Functional polymer Materials for Adsorption and Separation and Institute of polymer Chemistry Nankai UniversityTianjin 300071 Institute of Chemistry Chinese Academy of SciencesBeijing 100080

Two kinds of St/DVB copolymer beeds containing (1 - pyrenyl) formyl and(1 -pyrenyl) methyl groups respectively have been synthesized by both functionalization and copolymerization. The fluorescence spectra of the swollen polymers synthesized are similar in shape to those of the corresponding model compounds, whilethe intensity ratio of excimer to monomer shows clear dependence on the contents ofthe pyrene groups.

关键词： crosslinked polymer Pyrene Fluorescence Excimer

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