Field emission from one-dimensional single-crystalline NdB6 nanowires-中国期刊网

摘要 Afacilecatalysis-freemethodwasutilizedtosynthesizefunctionalneodymiumhexaboride(NdB6)nanowiresofsinglecrystalusingNdpowdersandBCl3asstartingmaterials.TheXRDpatternconfirmedthatasinglephaseNdB6couldbeobtained.Raman-spectraelucidatedtheactivevibrationalmodesofthehexaborides.TheTEMimagesclearlyshowedthatthehexaboridesweresubmicroninsizewithacubicmorphology.Thefieldemissionoftheseone-dimensionalNdB6nanowiresshowedalowfieldemissionturn-on(5.55V/μmatacurrentdensityof10μA/cm2),andhighcurrentdensitywithafieldenhancementfactorof1037.TheemissioncurrentdensityandtheelectricfieldfollowedtheFowler-Nordheim(F-N)relationship.Thegoodperformanceforfieldemissionwasattributedtothesingle-crystallinestructureandthenanowiregeometry.

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Field emission from one-dimensional single-crystalline NdB6 nanowires

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Field emission from one-dimensional single-crystalline NdB6 nanowires

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