典型文献
A sensitization strategy for highly efficient blue fluorescent organic light-emitting diodes
文献摘要：
Highly efficient blue fluorescent materials have recently attracted great interest for organic light-emitting diode(OLED)application.Here,two new pyrene based organic molecules consisting of a highly rigid skeleton,namely SPy and DPy,are developed.These two blue light emitters exhibit excellent thermal stability.The experiment reveals that the full-width at half-maximum(FWHM)of the emission spectrum can be tuned by introducing different amounts of 9,9-diphenyl-N-phenyl-9H-fluoren-2-amine on pyrene units.The FWHM of the emission spectrum is only 37 run in diluted toluene solution for DPy.Furthermore,highly efficient blue OLEDs are obtained by thermally activated delayed fluorescence(TADF)sensitization strategy.The blue fluorescent OLEDs utilizing DPy as emitters achieve a maximum external quantum efficiency(EQE)of 10.4％with the electroluminescence(EL)peak/FWHM of 480 nm/49 nm.Particularly,the EQE of DPy-based device is boosted from 2.6％in non-doped device to 10.4％in DMAc-DPS TADF sensitized fluorescence(TSF)device,which is a 400％enhancement.Therefore,this work demonstrates that the TSF strategy is promising for highly efficient fluorescent OLEDs application in wide-color-gamut display field.
文献关键词：
中图分类号：
作者姓名：
Yalei Duan;Runda Guo;Yaxiong Wang;Kaiyuan Di;Lei Wang
作者机构：
Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China
文献出处：
引用格式：
[1]Yalei Duan;Runda Guo;Yaxiong Wang;Kaiyuan Di;Lei Wang-.A sensitization strategy for highly efficient blue fluorescent organic light-emitting diodes)[J].光电子前沿（英文版）,2022(04):29-40
A类：
SPy,DPy,fluoren
B类：
sensitization,strategy,highly,efficient,blue,fluorescent,organic,light,emitting,diodes,Highly,materials,have,recently,attracted,great,interest,application,Here,two,new,pyrene,molecules,consisting,rigid,skeleton,namely,are,developed,These,emitters,exhibit,excellent,stability,experiment,reveals,that,full,width,half,maximum,FWHM,emission,spectrum,can,be,tuned,by,introducing,different,amounts,diphenyl,9H,amine,units,only,run,diluted,toluene,solution,Furthermore,OLEDs,obtained,thermally,activated,delayed,fluorescence,TADF,utilizing,achieve,external,quantum,efficiency,EQE,electroluminescence,EL,peak,Particularly,device,boosted,from,doped,DMAc,DPS,sensitized,TSF,which,enhancement,Therefore,this,work,demonstrates,promising,wide,color,gamut,display,field
AB值：
0.561384
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