典型文献
Enhancement of morphological and emission stability of deep-blue small molecular emitter via a universal side-chain coupling strategy for optoelectronic device
文献摘要：
Film morphology of emissive layers is crucial to the performance and stability of solution-processable organic light-emitting diodes(OLEDs).Compared to the interpenetration of conjugated polymer chain,small molecular emitter with a flexible side chain always presents easily aggregation upon external treat-ment,and caused π-electronic coupling,which is undesirable for the efficiency and stability of deep-blue OLEDs.Herein,we proposed a side-chain coupling strategy to enhance the film morphological an emis-sion stability of solution-processable small molecular deep-blue emitter.In contrary to"parent"MC8TPA,the crosslinkable styryl and vinyl units were introduced as ended unit at the side-chain of CmTPA and OEYTPA.Interestingly,CmTPA and OEYTPA films present a relatively stable morphology and uniform deep-blue emission after thermal annealing(160℃)in the atmosphere,different to the discontinuous MC8TPA annealed film.Besides,compared to the CmTPA and OEYTPA ones,serious polaron formation in the MC8TPA annealed film also negative to the deep-blue emission,according to transient absorp-tion analysis.Therefore,both CmTPA and OEYTPA annealed film obtained at 140℃present an excellent deep-blue ASE behavior with a 445 nm,but absence for MC8TPA ones,associated with the disruption of annealed films.Finally,enhancement of device performance based on CmTPA and OEYTPA film(～40％)after thermal annealing with a similar performance curves also confirmed the assumption above.There-fore,these results also supported the effectiveness of our side-chain coupling strategy for optoelectronic applications.
文献关键词：
中图分类号：
作者姓名：
Ning Sun;Han Gao;Lili Sun;Jingxi An;Man Xu;Chen Sun;Yamin Han;Jinyi Lin;Jiangli Cai;Mingjian Ni;Liangliang He;Jinghao Yang;Zhoulu Wang;Lubing Bai;Xinwen Zhang;Qi Wei;Xuehua Ding;Chengrong Yin;Linghai Xie;Wei Huang
作者机构：
Key Laboratory of Flexible Electronics(KLOFE)and Institute of Advanced Materials(IAM),Nanjing Tech University(NanjingTech),Nanjing 210000,China;State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials(IAM),Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Frontiers Science Center for Flexible Electronics(FSCFE),MIIT Key Laboratory of Flexible Electronics(KLoFE),Northwestern Polytechnical University,Xi'an 710072,China
文献出处：
引用格式：
[1]Ning Sun;Han Gao;Lili Sun;Jingxi An;Man Xu;Chen Sun;Yamin Han;Jinyi Lin;Jiangli Cai;Mingjian Ni;Liangliang He;Jinghao Yang;Zhoulu Wang;Lubing Bai;Xinwen Zhang;Qi Wei;Xuehua Ding;Chengrong Yin;Linghai Xie;Wei Huang-.Enhancement of morphological and emission stability of deep-blue small molecular emitter via a universal side-chain coupling strategy for optoelectronic device)[J].中国化学快报（英文版）,2022(02):835-841
A类：
MC8TPA,crosslinkable,styryl,CmTPA,OEYTPA
B类：
Enhancement,morphological,emission,stability,deep,blue,small,molecular,emitter,via,universal,chain,coupling,strategy,optoelectronic,device,Film,morphology,emissive,layers,crucial,performance,solution,processable,organic,light,emitting,diodes,OLEDs,Compared,interpenetration,conjugated,polymer,flexible,always,presents,easily,aggregation,upon,external,treat,caused,which,undesirable,efficiency,Herein,proposed,contrary,parent,vinyl,units,were,introduced,ended,Interestingly,films,relatively,stable,uniform,after,thermal,annealing,atmosphere,different,discontinuous,annealed,Besides,compared,ones,serious,polaron,formation,also,negative,according,transient,absorp,analysis,Therefore,both,obtained,excellent,ASE,behavior,but,absence,associated,disruption,Finally,enhancement,similar,curves,confirmed,assumption,above,these,results,supported,effectiveness,our,applications
AB值：
0.43603
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
