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Studies on sprayed lanthanum sulphide (La2S3) thin films from non-aqueous medium

机译：非水介质喷涂硫化镧（La2S3）薄膜的研究

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Thin films of lanthanum sulphide (La2S3) have been deposited onto glass substrates by spray pyrolysis technique from nonaqueous (methanol) medium. The structural, morphological, optical, dielectric, electric and thermoemf properties were studied. The films were polycrystalline with an irregular shaped particles present over the porous structure within a fibrous network structure. The optical band gap was estimated to be 2.50 eV. The dielectric properties were measured in the range 100 Hz-1 MHz. The electrical resistivity was of the order of 10(4) to 10(5) Omega cm. Thermoemf study revealed that the La2S3 films exhibit p-type electrical conductivity. (c) 2005 Elsevier B.V. All rights reserved.
机译：硫化镧（La2S3）薄膜已通过喷雾热解技术从非水（甲醇）介质中沉积到玻璃基板上。研究了结构，形态，光学，介电，电和热电动势特性。所述膜是多晶的，在纤维网络结构内的多孔结构上存在不规则形状的颗粒。光学带隙估计为2.50 eV。在100Hz-1MHz范围内测量介电性能。电阻率为10（4）至10（5）Ω厘米。 Thermoemf研究表明，La2S3薄膜具有p型导电性。 （c）2005 Elsevier B.V.保留所有权利。

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