典型文献
Self-assembly into Polymorphic 2D Nanosheets with Crystallization-Induced Emission Enhancement
文献摘要：
Organic micro/nanocrystals with polymorphic tailorability and perfect platform to modulate decode the complex relationship among molecular structures,supramolecular/noncovalent interactions,aggregates and exciton behaviors.Herein,we precisely tune the polymorphic two-dimensional organic nanosheets(2DONs)of cyano-spirocyclic aromatic hydrocarbon(2'-CN-SFX),where the crystal growth processes are dominated by precursor concentration.The low concentration(ca.2 mmol/L)affords the rhombus-like nanosheets with monoclinic P21/c space group,in which molecules adopt antiparallel and slipped stacking mode.In contrast,the high concentration(ca.4 mmol/L)favors herringbone-like molecular packing pattern and then generates shuttle-like nanosheets with monoclinic C2/c space group.Both above polymorphic nanosheets exhibit unprecedented crystallization-induced emission en-hancement(CIEE)feature that increases the photoluminescence quantum yields(PLQYs)from 16％in solution,21％in amorphous film to 37％-39％in crystalline states.This result will offer promising opportunities for nanophotonics and organic intelligent semi-conductors.
文献关键词：
中图分类号：
作者姓名：
He Zhang;Dong Jin;Dongqing Lin;Lei Huang;Jin Wang;Shasha Wang;Linghai Xie
作者机构：
Centre for Molecular Systems and Organic Devices(CMSOD),Key Laboratory for Organic Electronics and Information Displays&Institute of Advanced Materials,Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing University of Posts&Telecommunications,Nanjing,Jiangsu 210023,China
文献出处：
引用格式：
[1]He Zhang;Dong Jin;Dongqing Lin;Lei Huang;Jin Wang;Shasha Wang;Linghai Xie-.Self-assembly into Polymorphic 2D Nanosheets with Crystallization-Induced Emission Enhancement)[J].中国化学（英文版）,2022(07):832-837
A类：
tailorability,2DONs,spirocyclic,SFX,rhombus,CIEE
B类：
Self,assembly,into,Polymorphic,Nanosheets,Crystallization,Induced,Emission,Enhancement,Organic,micro,nanocrystals,polymorphic,perfect,platform,modulate,decode,complex,relationship,among,structures,supramolecular,noncovalent,interactions,aggregates,exciton,behaviors,Herein,we,precisely,tune,two,dimensional,organic,nanosheets,cyano,aromatic,hydrocarbon,CN,where,growth,processes,are,dominated,by,precursor,concentration,low,affords,like,monoclinic,P21,space,group,which,molecules,adopt,antiparallel,slipped,stacking,mode,contrast,high,favors,herringbone,packing,pattern,then,generates,shuttle,C2,Both,above,exhibit,unprecedented,crystallization,induced,emission,feature,that,increases,photoluminescence,quantum,yields,PLQYs,from,solution,amorphous,film,crystalline,states,This,result,will,offer,promising,opportunities,nanophotonics,intelligent,semi,conductors
AB值：
0.700573
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