Progress in Fluorene-based Wide-bandgap Steric Semiconductors

查看全文 作　　者：Meng-na [1]Yu;Chang-jin [2]Ou;Bin [1]Liu;Dong-qing [1]Lin;Yu-yu [1]Liu;Wei [1]Xue;Zong-qiong [2]Lin;Jin-yi [2]Lin;Yan [1]Qian;Sha-sha [1]Wang;Hong-tao [1]Cao;Lin-yi [1]Bian;[1]解令海;[1,2]黄维

机构地区：[1]Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China;[2]Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China

出　　处：《Chinese Journal of Polymer Science》索引2017年第35卷第2期,共16页

基　　金：financially supported by the National Natural Science Funds for Excellent Young Scholar(No.21322402);the National Natural Science Foundation of China(Nos.21274064,61475074,21504041 and 61136003);University of Jiangsu Province Natural Science Foundation Project(No.14KJB510027);Natural Science Foundation of Jiangsu Province(No.BM2012010);Excellent Science and Technology Innovation Team of Jiangsu Higher Education Institutions,Synergetic Innovation Center for Organic Electronics and Information Displays,Natural Science of the Education Committee of Jiangsu Province(No.15KJB430019);Jiangsu Planned Projects for Postdoctoral Research Funds(No.1501019B) 摘　　要：Molecular bulks are favorable for the thermal and morphological stability in organic wide-bandgap semiconducting polymers with potential applications in both information and energy electronics. In this review, we present our progress in the design of fluorene-based bulky semiconductors with a fractal four-element pattern. Firstly, we established one-pot methods to spirofluorenes, especially spiro[fluorene-9,9′-xanthene](SFX) serving as the next-generation spiro-based semiconductors. Secondly, we observed the supramolecular forces at the bulky groups and discovered the supramolecular steric hindrance(SSH) effect on polymorphisms, nanocrystals as well as device performance. Thus, a synergistically molecular attractor-repulsor theory(SMART) was proposed for the control of nanocrystal morphology, thin film phase and morphology. Thirdly, the third possible type of defects has been identified to generate green band(g-band) emission in widebandgap semiconductors by the introduction of molecular strain design of cyclofluorene. Finally, the first bulky polydiarylfluorene with highly crystalline and β conformation was achieved by an attractor-repulsor design of tadpole-shape monomer, which offered an effective platform to fabricate stable wide-bandgap semiconducting devices. All the discoveries offer the solid basis to break through bottlenecks of organic/polymer wide-bandgap semiconductors by the improvements of overall performances. 关键词：ORGANICS 位的效果 Attractor-repulsor 分子的缺点 Wide-bandgap

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Progress in Fluorene-based Wide-bandgap Steric Semiconductors

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