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合肥工业大学 应用物理系
收稿:2008-09-10,
修回:1900-1-2,
网络首发:2009-06-30,
纸质出版:2009-06-30
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于永强, 梁 齐, 马渊明, 等. 基片温度对PLD制备ZnO薄膜光学常数的影响[J]. 发光学报, 2009,30(3):297-303.
YU Yong-qiang, LIANG Qi, MA Yuan-ming, et al. Influence of Substrate Temperature on the Optical Constants of ZnO Thin Film Grown by PLD[J]. Chinese Journal of Luminescence, 2009, 30(3): 297-303.
光谱椭偏仪被用来研究用脉冲激光沉积方法在Si(100)基片上
温度分别为400
500
600
700 ℃制备的ZnO薄膜的特性。利用三层Cauchy散射模型拟合椭偏参数
计算了每个温度下制备的ZnO薄膜在400~800 nm波长范围内的折射率(
n
)和消光系数(
k
)。发现基片温度对光学常数有很大的影响。通过分析XRD表征的晶体结构和 AFM表征的薄膜表面形貌
发现折射率的变化归因于薄膜堆积密度的变化。为了获得具有较好的光学和薄膜质量的ZnO薄膜
相比与其他沉积温度600 ℃或许是最佳的沉积温度。
paper
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