Cadmium oxide (CdO) thin films doped with different yttrium (Y) concentrations have been prepared by the cost-effective spin coating technique. The effect of Y doping on structural, morphological, linear, and nonlinear optical properties of the as-prepared CdO thin films is studied. The AFM morphology of the thin films revealed grain size increase with the increase in the percentage of Y doping. From the optical properties, it is found that the films are highly transparent and the optical band gap spreads over the range of 2.3–2.8 eV. The Y doping drastically suppresses the linear and nonlinear optical properties.

中文翻译：

---

纳米Y：CdO纳米薄膜的简便制备与表征

已通过具有成本效益的旋涂技术制备了掺杂不同钇（Y）浓度的氧化镉（CdO）薄膜。研究了Y掺杂对所制备的CdO薄膜的结构，形态，线性和非线性光学性质的影响。薄膜的AFM形态表明，晶粒尺寸随Y掺杂百分比的增加而增加。从光学性能来看，发现薄膜是高度透明的，并且光学带隙在2.3–2.8 eV的范围内扩展。Y掺杂极大地抑制了线性和非线性光学性质。