典型文献
Controlling the Balance of Photoluminescence and Photothermal Effect in Cyanostilbene-Based Luminescent Liquid Crystals
文献摘要:
Molecular motions of the luminescent liquid crystals(LLCs)show a significant effect on fluorescent emission and heat generation.In this article,a series of cyanostilbene-based LLCs(CSs:CS1-6,CS1-12,CS2-6 and CS2-12)are synthesized to investigate how the pho-toluminescence and photothermal effect balanced.Among these materials,the mesogens peripheried by single alkyl chains formed enantiotropic nematic(CS1-6)or smectic C(CS1-12)phase with different alkyl tail lengths.When the single aliphatic chain is re-placed by mini-dendrons,room temperature(RT)monotropic hexagonal columnar phase(CS2-12)or molecular liquid(CS2-6)is formed.The results revealed that all these materials exhibited high efficiency emission with the highest quantum yield reaching 59.0%.The photoluminescence and photothermal effect can be effectively tuned by dispersing CSs into a commercially available RT liquid crystal matrix 8CB,which output significantly improved photothermal conversion efficiency of 63.2%.Furthermore,the pho-tothermal can rapidly trigger the Smectic A-Nematic-Isotropic sequence transitions of 8CB doped with CSs.This work paves a way of adjusting the balance of photoluminescence and photothermal properties of the LLC materials.
文献关键词:
中图分类号:
作者姓名:
Xiang-Jian Cao;Wei Li;Jiahua Li;Lin Zou;Xing-Wang Liu;Xiang-Kui Ren;Zhen-Qiang Yu
作者机构:
School of Chemical Engineering and Technology,State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300350,China;College of Chemistry and Environmental Engineering,Institute of Low-dimensional Materials Genome Initiative,Shenzhen University,Shenzhen,Guangdong 518071,China
文献出处:
引用格式:
[1]Xiang-Jian Cao;Wei Li;Jiahua Li;Lin Zou;Xing-Wang Liu;Xiang-Kui Ren;Zhen-Qiang Yu-.Controlling the Balance of Photoluminescence and Photothermal Effect in Cyanostilbene-Based Luminescent Liquid Crystals)[J].中国化学(英文版),2022(08):902-910
A类:
Cyanostilbene,LLCs,cyanostilbene,mesogens,peripheried,enantiotropic,monotropic,8CB,Smectic
B类:
Controlling,Balance,Photoluminescence,Photothermal,Effect,Based,Luminescent,Liquid,Crystals,Molecular,motions,luminescent,liquid,crystals,show,fluorescent,emission,heat,generation,In,this,article,series,CSs,CS1,CS2,are,synthesized,investigate,photothermal,balanced,Among,these,materials,by,single,alkyl,chains,formed,nematic,smectic,phase,different,tail,lengths,When,aliphatic,placed,mini,dendrons,room,temperature,hexagonal,columnar,molecular,results,revealed,that,exhibited,efficiency,highest,quantum,yield,reaching,photoluminescence,effectively,tuned,dispersing,into,commercially,available,matrix,which,output,significantly,improved,conversion,Furthermore,rapidly,trigger,Nematic,Isotropic,sequence,transitions,doped,This,work,paves,way,adjusting,properties
AB值:
0.529247
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