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典型文献
Highly Stable CsPbBr3 Nanocrystal Phosphors by Surface Passivation and Encapsulation
文献摘要:
The colloidal all-inorganic CsPbX3(X=I,Br,Cl)perovskite nano-crystals(NCs)with unique optical properties have attracted considerable attention in the field of semiconductor nano-crystals,but their application is hindered by stability issues caused by surface defects and environmental factors.Usually with inert layer encapsulation,the stability of CsPbX3 NCs can be significantly enhanced.However,due to the loss of highly dynamic oleic acid/oleylamine ligands,it is usually accompanied by a decrease in the photoluminescence quantum yield(PLQY).Herein,we report a facile method for preparing CsPbBr3 NCs based green phosphors with high stability and bright emission.With modification of colloi-dal CsPbBr3 NCs by di-dodecyldimethylammonium bromide and sequent encapsulation in the as-synthesized mesoporous MOF-5,the green emitting phosphors with enhanced stability and a PLQY of 77%were obtained.The phosphors exhibit enhanced resistance against ambient oxygen,UV light,heat treatment and water.These excellent properties show the potential value of our prepared NCs as stable phosphors in light-emitting devices.
文献关键词:
作者姓名:
SHANG Zheliang;XUE Weinan;WANG Wei;LI Yan
作者机构:
Shanghai Key Laboratory of Functional Materials Chemistry,Institute of Applied Chemistry,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,P.R.China
引用格式:
[1]SHANG Zheliang;XUE Weinan;WANG Wei;LI Yan-.Highly Stable CsPbBr3 Nanocrystal Phosphors by Surface Passivation and Encapsulation)[J].高等学校化学研究(英文版),2022(02):588-595
A类:
Phosphors,oleylamine,colloi,dodecyldimethylammonium
B类:
Highly,Stable,CsPbBr3,Nanocrystal,by,Surface,Passivation,Encapsulation,colloidal,inorganic,CsPbX3,Cl,perovskite,nano,crystals,NCs,unique,optical,properties,have,attracted,considerable,attention,field,semiconductor,but,their,application,hindered,stability,issues,caused,surface,defects,environmental,factors,Usually,inert,layer,encapsulation,be,significantly,enhanced,However,due,loss,highly,dynamic,oleic,acid,ligands,usually,accompanied,decrease,photoluminescence,quantum,yield,PLQY,Herein,report,facile,method,preparing,green,phosphors,bright,emission,With,modification,bromide,sequent,synthesized,mesoporous,MOF,emitting,were,obtained,exhibit,resistance,against,ambient,oxygen,UV,light,heat,treatment,water,These,excellent,show,potential,value,our,prepared,stable,devices
AB值:
0.610475
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