Effect of core-shell heterostructure on the optical and electrochemical properties for poly(p-phenylenevinylene)wrapped multi-walled carbon nanotubes ，2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）-中国聚合物网,论文下载

Effect of core-shell heterostructure on the optical and electrochemical properties for poly(p-phenylenevinylene)wrapped multi-walled carbon nanotubes

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Poly(p-phenylenevinylene) multiwalled carbon nanotubes core-shell heterostructure optical
properties electrochemical properties

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777K

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分子表征

来源：

2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）

简介：

Thetransportationandcollectionofchargesinadisorderednanoscaleblendcouldbehinderedbyphaseboundariesanddiscontinuitiesinblendsofconductingpolymersandcarbonnanotubes.Anovelcore-shellheterostructurewasfabricatedbyinsitupolymerizationofpoly(p-phenylenevinylene)(PPV)precursorinthepresenceofmulti-walledcarbonnanotubes(MWCNTs)withlessdefectunderultrasonicirradiation.Runsundermagneticstirringwerealsocarriedoutinasamereactionflaskforcomparison.TEMimagesfurthershowedthatcore-shellheterostructuresconsistingofcarbonnanotubecoreandPPVshellweresuccessivelyfabricatedundercontinuousultrasonicirradiation.BlueshiftsintheopticalspectraconsistingoftheUV-visabsorptionandphotoluminescencespectrawiththeattractionofPPVonthesurfaceoftheMWCNTswereobserved.TheevidentquenchinginphotoluminescencespectrawasascribedtotheabsorptionandtransferofrecombinationenergybyMWCNTs.Theenhancementintheelectrochemicalpropertiescanbeattributedtotheintrinsicnanophaseseparationincore-shellheterostructuresandthecombinationoftwomaterialswithdifferentelectronicproperties.

作者：

LIU Hongjin, QIN Zongyi, ZHOU Yi, Li LI, ZHU Meifang

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2010-03-26 13:47:29

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