Xu Yachao, Bu Tongle, Li Meijin, Qin Tianshi, Yin Chengrong, Wang Nanna, Li Renzhi, Zhong Jie, Li Hai, Peng Yong, Wang Jianpu, Xie Linghai, Huang Wei
Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China.
ChemSusChem. 2017 Jun 22;10(12):2578-2584. doi: 10.1002/cssc.201700584. Epub 2017 May 30.
A new non-conjugated polymer (PVCz-OMeDAD) with good solution processability was developed to serve as an efficient dopant-free hole-transporting material (HTM) for perovskite solar cells (PSCs). PVCz-OMeDAD was simply prepared by the free-radical polymerization of vinyl monomers, which were synthesized from low-cost raw materials through three high-yield synthesis steps. The combination of the flexible non-conjugated polyvinyl main chain and hole-transporting methoxydiphenylamine-substituted carbazole side chains endowed PVCz-OMeDAD with excellent film-forming ability, a suitable energy level, and high hole mobility. As a result, by using an ultra-thin (≈30 nm) PVCz-OMeDAD film as cost-effective dopant-free polymer HTM, the conventional n-i-p-type PSCs demonstrated a power conversion efficiency (PCE) up to 16.09 %, suggesting the great potential of the polymer film for future low-cost, large-scale, flexible PSCs applications.
开发了一种具有良好溶液加工性能的新型非共轭聚合物（PVCz-OMeDAD），用作钙钛矿太阳能电池（PSC）的高效无掺杂空穴传输材料（HTM）。PVCz-OMeDAD通过乙烯基单体的自由基聚合简单制备，这些乙烯基单体由低成本原料经三个高产率合成步骤合成。柔性非共轭聚乙烯主链与空穴传输甲氧基二苯胺取代咔唑侧链的结合赋予PVCz-OMeDAD优异的成膜能力、合适的能级和高空穴迁移率。结果，通过使用超薄（≈30nm）PVCz-OMeDAD薄膜作为具有成本效益的无掺杂聚合物HTM，传统的n-i-p型PSC表现出高达16.09%的功率转换效率（PCE），表明该聚合物薄膜在未来低成本、大规模、柔性PSC应用中具有巨大潜力。
