Photonics and Nanostructures - Fundamentals and Applications ( IF 2.5 ) Pub Date : 2020-03-21 , DOI: 10.1016/j.photonics.2020.100784 G. Shanmugavel , A.R. Balu , R. Baskaran , V.S. Nagarethinam
Cauliflower shape nanostructured Cs-doped CdO (CdO:Cs) thin films were grown using perfume atomizer. A strong (1 1 1) preferential orientation is noticed for the cubic structured CdO:Cs thin films. Surface morphology of CdO was strongly influenced with Cs doping. All the doped films exhibit better transparency than pure CdO. With Cs doping, the absorption edge seems to shift towards lower wave lengths (i.e. higher energies). The 2 wt.% Cs-doped CdO thin film exhibits a minimum resistivity of 0.95 × 10−3 Ω-cm. Increased Hackee’s quality factor realized with Cs doping confirms that the CdO:Cs thin films are well suited for optoelectronic devices especially as transparent electrodes. A maximum photo degradation efficiency of 86.9 % was realized for the 2 wt.% Cs-doped CdO thin film against malachite green under visible light.
中文翻译:
通过Cs掺杂实现改善的花椰菜形状纳米CdO薄膜的Hackee品质因数和光降解效率
使用香料雾化器生长花椰菜形状的纳米结构的Cs掺杂CdO(CdO:Cs)薄膜。立方结构的CdO:Cs薄膜具有很强的(1 1 1)优先取向。Cs掺杂对CdO的表面形态有很大影响。所有掺杂的薄膜都比纯CdO表现出更好的透明度。使用Cs掺杂时,吸收边似乎朝着较低的波长(即较高的能量)移动。掺杂2 wt。%Cs的CdO薄膜的最小电阻率为0.95×10 -3Ω-cm。通过Cs掺杂实现的Hackee品质因数提高,证实了CdO:Cs薄膜非常适合光电器件,特别是作为透明电极。对于2重量%的掺杂Cs的CdO薄膜,在可见光下对孔雀石绿的最大光降解效率达到了86.9%。