Cross-Scale Synthesis of Organic High-k Semiconductors Based on Spiro-Gridized Nanopolymers  

作　　者：Dongqing Lin Wenhua Zhang Hang Yin Haixia Hu Yang Li He Zhang Le Wang Xinmiao Xie Hongkai Hu Yongxia Yan Haifeng Ling Jin'an Liu Yue Qian Lei Tang Yongxia Wang Chaoyang Dong Linghai Xie Hao Zhang Shasha Wang Ying Wei Xuefeng Guo Dan Lu Wei Huang 

机构地区：[1]Centre for Molecular Systems and Organic Devices(CMSOD),State Key Laboratory of Organic Electronis and Information Displays&Institute of Advanced Materials(AM),Nanjing University of Posts.Telecommunications,9 Wenyuan Road,Narnjing 210023,China [2]National Symnchrotron Radiationr Laboratory,Anhui Provincial Engincering Laboratory of Advanced Functional Polymer Film,CAS Key Laboratory of Soft Matter Chemistry,University of Science and Technology of China,Hgfei 230026,China [3]School of Plysics,State Key Laboratory of Crystal Materials,Shandong University,Jinan,Shardong 250100,China [4]Beijing National Laboratony for Molecular Scences,National Biomedical Imaging Center,College of Chemistry and Molecular Engineering,Peking University,Bejing 100871,China [5]Frontiers Science Center for Flexible Electronics(FSCFE),MIIT Key Laboratory of Flexible Electronics(KLoFE),Northwestern Polytechnical Untiversity,Xian 710072,China [6]State Key Laboratory of Supramolecular Structure and Materias,College of Chemisty,jilin University,2699 Qianjin Avenue,Changchun 130012,China

出　　处：《Research》2022年第2期111-122,共12页研究（英文）

基　　金：supported by the National Natural Science Foundation of China(21774061,22071112,and 61935017);National Key Laboratory(2009DS690095);Natural Science Foundation Major Research Program Integration Project(Grant Number 91833306);Natural Science Fund for Colleges and Universities in Jiangsu Province(20KJB150038);and Open Project from State Key Laboratory of Supramolecular Structure and Materials at jilin University(No.sklssm202014 and sklssm202108).

摘　　要：High dielectric constants in organic semiconductors have been identified as a central challenge for the improvement in not only piexoelectric,preolecric,and freeltric efcts but also photoclecric conversion eficiency in OPVs,carrier mobility in OFETS,and charge density in charge-trapping memories.Herein,we report an ultralong persistence length(≈41 nm)efet of spiro-fused organic nanopolymers on dielectric properties,together with excitonic and charge carrier behaviors.The state-of-the-art nanopolymers,namely,nanopolyspirogrids(NPSGs),are synthesized via the simple crossscale Friedel-Crafts polygridlization of AjB-type nanomonomers.The high dielectric constant(k=8.43)of NPSG is firstly achieved by locking spiro-polygridization efect that results in the enhancement of dipole polarization.When doping into a polystyrene-based dielectric layer,such a high-k feature of NPSG increases the feld-ffct carrier mobility from 0.20 to 0.90cm^(2)Vl s'in pentacene OFET devices.Meanwhile,amorphous NPSG film exhibits an ultralow energy disorder(<50 meV)for an exellent zero-field hole mobility of 3.94×10^(-1)cm^(2)V^(-1)s^(-1).surpassing most of the amorphousπconjugated polymers Onganic nanopolymers with high dielectric constants open a new way to break through the bottleneck of eficiency and multifunctionality in the blueprint of the fourth generation semiconductors.

关 键 词：dielectric CHARGE AMORPHOUS 

分 类 号：TN3[电子电信—物理电子学] TB383[一般工业技术—材料科学与工程]