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Characterization of newly synthesized quaternary oxide Li-Cu-Mo-O for photoelectric devices

机译:新合成的光电器件四元氧化物Li-Cu-Mo-O的表征

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A new quaternary oxide, Li2CuMo2O8, was synthesized by the solid-state reaction between corresponding oxides and characterized by chemical analysis, X-ray diffraction, electrical conductivity, diffuse reflectance spectra and magnetic study. It crystallizes in tetragonal symmetry with lattice parameters, a(0) = 16.658 Angstrom and c(0) = 26.914 Angstrom. It is an n-type semiconducting material having bandgap of 1.54 eV. Magnetic susceptibility measurement indicate that the compound is anti-ferromagnetic having C-m = 3.707 and q(a) = -15. The material in the form of hydrogen-annealed pellet was used as a photoanode in electrochemical photovoltaic (ECPV) cell. Flat band potential was located at -0.43 V. ECPV cell parameters such as conversion efficiency (eta) and fill factor were found to have values as 0.81% and 0.397, respectively. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 21]
机译:通过相应氧化物之间的固相反应合成了一种新的四元氧化物Li2CuMo2O8,并通过化学分析,X射线衍射,电导率,漫反射光谱和磁学研究对其进行了表征。它以具有晶格参数a(0)= 16.658埃和c(0)= 26.914埃的四边形对称结晶。它是一种带隙为1.54 eV的n型半导体材料。磁化率测量表明该化合物具有C-m = 3.707和q(a)= -15的反铁磁性。氢退火颗粒形式的材料用作电化学光伏(ECPV)电池中的光阳极。平坦带电势位于-0.43V。发现ECPV电池参数(例如转换效率(eta)和填充系数)分别为0.81%和0.397。 (C)2002 Elsevier Science B.V.保留所有权利。 [参考:21]

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