Structural and Physical Property Analysis of ZnO-SnO2—In2O3—Ga2O3 Quaternary Transparent Conducting Oxide System
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2013年第5期
论文作者：P.Jayaram T.P.Jaya P.P.Pradyumnan
文章页码：419 - 422
摘 要：<正>The increasing demand in the diverse device applications of transparent conducting oxides（TCOs） requires synthesis of new TCOs of n- or p-type conductivity.This article is about materials engineering of ZnO—SnO2—ln2O3—Ga2O3 to synthesize powders of the quaternary compound Zn2-xSn1-xJnxGaxO4-δ in the stoichiometry of x = 0.2,0.3,and 0.4 by solid state reaction at 1275℃.Lattice parameters were determined by X-ray diffraction（XRD） technique and solubility of ln3+ and Ga3+ in spinel Zn2SnO4 was found at 1275℃.The solubility limit of ln3+ and Ga3+ in Zn2SnO4 is found at below x = 0.4.The optical transmittance approximated by the UV—Vis reflectance spectra showed excellent characteristics while optical band gap was consistent across 3.2 eV with slight decrease along increasing x value.Carrier mobility of the species was considerably higher than the older versions of zinc stannate spinel co-substitutions whereas the carrier concentrations were moderate.
P.Jayaram1，T.P.Jaya1，P.P.Pradyumnan1
1. Department of Physics,University of Calicut,Calicut University(P.O.),Malappuram District,Kerala 673 635,India
摘 要：<正>The increasing demand in the diverse device applications of transparent conducting oxides（TCOs） requires synthesis of new TCOs of n- or p-type conductivity.This article is about materials engineering of ZnO—SnO2—ln2O3—Ga2O3 to synthesize powders of the quaternary compound Zn2-xSn1-xJnxGaxO4-δ in the stoichiometry of x = 0.2,0.3,and 0.4 by solid state reaction at 1275℃.Lattice parameters were determined by X-ray diffraction（XRD） technique and solubility of ln3+ and Ga3+ in spinel Zn2SnO4 was found at 1275℃.The solubility limit of ln3+ and Ga3+ in Zn2SnO4 is found at below x = 0.4.The optical transmittance approximated by the UV—Vis reflectance spectra showed excellent characteristics while optical band gap was consistent across 3.2 eV with slight decrease along increasing x value.Carrier mobility of the species was considerably higher than the older versions of zinc stannate spinel co-substitutions whereas the carrier concentrations were moderate.
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