Abstract In this work, CuO thin films with different cobalt percentages were deposited, at room temperature on glass and copper substrates, using radio-frequency sputtering under 30% oxygen partial pressure. The effect of Co content on structural, electrical, morphological and optical properties of CuO films was investigated in detail. The X-ray diffraction measurements revealed a polycrystalline monoclinic structure for all sputtered films. Raman analyses showed a peak broadening and shift due to the quantum confinement effect in the copper oxide nanoparticles. Adding cobalt leads to the decrease of the crystallite size and the band gap energy. Electrical measurements showed that the film conductivity increases with the Co content. All films exhibited good solar selectivity (>12) with high solar absorptance (>92%) and low thermal emittance (

中文翻译：

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用于太阳能选择性吸收器应用的射频溅射 Co:CuO 纳米复合材料的制备和表征

摘要 在这项工作中，在室温下，在 30% 氧分压下使用射频溅射在玻璃和铜基板上沉积了具有不同钴百分比的 CuO 薄膜。详细研究了 Co 含量对 CuO 薄膜的结构、电学、形态和光学性能的影响。X 射线衍射测量揭示了所有溅射薄膜的多晶单斜结构。拉曼分析表明，由于氧化铜纳米粒子中的量子限制效应，峰变宽和偏移。添加钴导致微晶尺寸和带隙能量的减小。电学测量表明薄膜电导率随着 Co 含量的增加而增加。所有薄膜都表现出良好的太阳能选择性（> 12），具有高太阳能吸收率（> 92％）和低热发射率（