典型文献
Crystals Array via Oriented Nucleation and Growth Induced by Smectic E Mesophase of C7-T-BTBT
文献摘要：
Long-range order crystalline thin films of organic semiconductors have attracted wide attention owing to their high charge carrier mobility.However,uncontrolled crystal nucleation and growth during the thin film drying process cause the formation of grain boundaries,thereby limiting the long-range order.Herein,we achieved the oriented nucleation and growth of organic semiconductors by off-centre spin-coating at the temperature of the smectic E(SmE)liquid crystal mesophase,and then followed by Ostwald ripening during solvent vapour annealing.The thin film of 2-(5-heptylthiophen-2-yl)[1]benzothieno[3,2-b][1]benzothiophne(C7-T-BTBT)blended with 40％(mass fraction)poly(methyl methacrylate)(PMMA)was prepared by off-centrespin-coating at SmE mesophase(170℃),followed by solvent vapour annealing in chloroform for 24 h(chloroform is a good solvent for C7-T-BTBT and PMMA).The C7-T-BTBT molecules grew to rod-like crystals,which were mostly arranged parallel to each other.The crystal growth was perfect and resulted in a single crystal.The average length of the crystals was approximately 87 μm.Moreover,the highest charge carrier mobility is 1.62 cm2·V-1·s-1 as against that of the film prepared at 25℃(0.06 cm2.V-1.s-1).
文献关键词：
中图分类号：
作者姓名：
LI Hongxiang;WANG Sichun;LIU Xinyu;WU Fan;ZHANG Qiang;YUAN Jian;MA Wei;HAN Yanchun
作者机构：
State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,P.R.China;School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,P.R.China;State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,P.R.China
文献出处：
引用格式：
[1]LI Hongxiang;WANG Sichun;LIU Xinyu;WU Fan;ZHANG Qiang;YUAN Jian;MA Wei;HAN Yanchun-.Crystals Array via Oriented Nucleation and Growth Induced by Smectic E Mesophase of C7-T-BTBT)[J].高等学校化学研究（英文版）,2022(04):1041-1049
A类：
Smectic,Mesophase,SmE,heptylthiophen,benzothieno,benzothiophne,centrespin
B类：
Crystals,Array,via,Oriented,Nucleation,Growth,Induced,C7,BTBT,Long,order,crystalline,thin,films,organic,semiconductors,have,attracted,wide,attention,owing,their,charge,carrier,mobility,However,uncontrolled,nucleation,growth,during,drying,process,cause,formation,grain,boundaries,thereby,limiting,long,Herein,achieved,oriented,off,coating,temperature,smectic,liquid,mesophase,then,followed,Ostwald,ripening,solvent,vapour,annealing,blended,mass,fraction,poly,methyl,methacrylate,PMMA,was,prepared,chloroform,is,good,molecules,grew,rod,like,crystals,which,were,mostly,arranged,parallel,each,other,perfect,resulted,single,average,length,approximately,Moreover,highest,against,that
AB值：
0.506848
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