学科分类
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2 个结果
  • 简介:摘要WO3是一种过渡金属半导体,位于元素周期表第6周期VIB族,带隙约为2.6eV,有着非常丰富的物理化学性能,本文就WO3性质及应用作一个简要的综述,并展望其发展方向。

  • 标签: WO3,性质,应用
  • 简介:TheNaGd(WO_4)_2:Eu~(3+)phosphorswerepreparedbythemicroemulsionmediatedhydrothermalmethod.ThemorphologyandsizeofthesamplescouldbedependentonthepHintheinitialsolution.Thesephosphorsobtainedhadastrongabsorptionat395nmmatchingwiththepopularemissionofnear-UVLEDchips,andcouldemitintenseredlightat616nm.Thesmallellipsoid-likeparticlesorshortrodswereprovidedwithlargeparametersofoscillatorstrength?_2andasymmetryratio.Comparedtotheellipsoid-likephosphors,therod-likephosphorstookonstrongeremission,longerlifetimeandlargerquantumefficiency.Thisworkdemonstratedthattheone-dimensionNaGd(WO_4)_2:Eu~(3+)phosphorsmightbeamorefavorabledevicethanzero-dimensiononesforphotoluminescence.

  • 标签: MICROEMULSION hydrothermal oscillator matching LIFETIME sizes