典型文献
Improving reverse intersystem crossing of MR-TADF emitters for OLEDs
文献摘要：
Thermally activated delayed fluorescence(TADF)emitter is a promising organic light-emitting diode(OLED)material due to low cost,wide luminous color gamut and 100％ex-citon utilization efficiency[1].To achieve high TADF perform-ance,a feasible strategy is to construct a twisted donor-acceptor(D-A)unit,decreasing the overlap between the highest occupied molecular orbital(HOMO)and the lowest un-occupied molecular orbital(LUMO),and minimizing the en-ergy gap(△EST)between the lowest singlet(S1)and triplet(T1)states[2,3].However,this long-range charge transfer fea-ture is often disadvantageous for achieving high oscillator strengths(f)and radiative transition rates(kr)[4](Fig.1(a)).Moreover,common TADF emitters always display broad elec-troluminescence spectra,whose full-widths at half-maximum(FWHMs)are 70-100 nm[5].Therefore,it is necessary to real-ize a narrow-band emission system,which can improve the dis-play quality greatly,with high kr and high rate constant of re-verse intersystem crossing(kRISC).
文献关键词：
中图分类号：
作者姓名：
Xufeng Luo;Lixiu Zhang;Youxuan Zheng;Liming Ding
作者机构：
State Key Laboratory of Coordination Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China;Center for Excellence in Nanoscience(CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS),National Center for Nanoscience and Technology,Beijing 100190,China
文献出处：
引用格式：
[1]Xufeng Luo;Lixiu Zhang;Youxuan Zheng;Liming Ding-.Improving reverse intersystem crossing of MR-TADF emitters for OLEDs)[J].半导体学报（英文版）,2022(11):5-8
A类：
citon,troluminescence,FWHMs
B类：
Improving,reverse,intersystem,crossing,MR,TADF,emitters,OLEDs,Thermally,activated,delayed,fluorescence,promising,organic,light,emitting,diode,material,due,cost,wide,luminous,color,gamut,ex,utilization,efficiency,To,achieve,perform,ance,feasible,strategy,construct,twisted,donor,acceptor,unit,decreasing,overlap,between,highest,occupied,molecular,orbital,HOMO,lowest,LUMO,minimizing,ergy,gap,EST,singlet,S1,triplet,states,However,this,long,range,charge,transfer,ture,often,disadvantageous,achieving,oscillator,strengths,radiative,transition,rates,kr,Fig,Moreover,common,always,display,broad,elec,spectra,whose,full,widths,half,maximum,are,Therefore,necessary,real,ize,narrow,band,emission,which,can,improve,quality,greatly,constant,kRISC
AB值：
0.678565
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