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Synthesis and characterization of nanocrystalline CdZnO thin films prepared by sol-gel dip-coating process

机译：溶胶-凝胶浸涂法制备纳米晶CdZnO薄膜及其表征

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摘要

Nanocrystalline Cd_xZn_(1-x)O thin films with different Cd volume ratios in solution (x = 0,0.25,0.50,0.75 and 1) have been deposited on glass substrate by sol-gel dip-coating method. The as-deposited films were subjected to drying and annealing temperatures of 275 ℃ and 450 ℃ in air, respectively. The prepared films were characterized by X-ray diffraction, scanning electron microscopy. X-ray photoelectron spectroscopy, UV-vis spectroscopy and dc-electrical measurements. The results show that the samples are polycrystalline and the crystallinity of the films enhanced with x. The average grain size is in the range of 20-53 nm. The atomic percent of Cd:Zn was found to be 9.50:1.04,6.20:3.77 and 4.42:6.61 for x = 0.75,0.50 and 0.25, respectively. It was observed that the transmittance and the band gap decreased as × increased. All the films exhibit n-type electrical conductivity. The resistivity (ρ) and mobility (μ) are in the range of 3.3 × 10~2 - 3.4 × 10~(-3) Ω cm, and 1.5-45 cm~2 V~(-1) s~(-1) respectively. The electron density lies between 1.26 x 10~(16) and 0.2 × 10~(20) cm~(-3).
机译：通过溶胶-凝胶浸涂法将具有不同Cd体积比的溶液（x = 0,0.25,0.50,0.75和1）的纳米晶Cd_xZn_（1-x）O薄膜沉积在玻璃基板上。所沉积的膜在空气中分别经受275℃和450℃的干燥和退火温度。通过X射线衍射，扫描电子显微镜对所制备的膜进行表征。 X射线光电子能谱，紫外可见光谱和直流电测量。结果表明样品是多晶的，并且膜的结晶度通过x提高。平均晶粒尺寸在20-53nm的范围内。对于x = 0.75、0.50和0.25，发现Cd：Zn的原子百分比分别为9.50：1.04、6.20：3.77和4.42：6.61。观察到，透射率和带隙随着×的增加而减小。所有的膜都表现出n型导电性。电阻率（ρ）和迁移率（μ）在3.3×10〜2-3.4×10〜（-3）Ωcm和1.5-45 cm〜2 V〜（-1）s〜（-1）的范围内） 分别。电子密度介于1.26 x 10〜（16）和0.2×10〜（20）cm〜（-3）之间。

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  • 来源
    《Thin Solid Films》 |2011年第4期|p.1228-1232|共5页
  • 作者

    A. Abdolahzadeh Ziabari; F.E. Ghodsi;

  • 作者单位

    Department of Physics, Faculty of Science, The University of Guilan, Namjoo Avenue, P.O. Box41335W14, Rasht, Iran;

    Department of Physics, Faculty of Science, The University of Guilan, Namjoo Avenue, P.O. Box41335W14, Rasht, Iran;

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  • 正文语种 eng
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  • 关键词

    CdZnO; sol-gel; nanostructure; optical properties;

    机译：CdZnO;溶胶凝胶纳米结构光学性质;

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