Structural and optical properties of Cd_(0.8)Zn_(0.2)S thin films

Cd_(1-x)Zn_xS thin films were deposited on glass substrates by a vacuum coevaporation method.The structural,compositional,and optical properties of as-deposited Cd_(0.8)Zn_(0.2)S films were investigated using X-ray diffraction(XRD),X-ray fluorescence(XRF),X-ray photoelectron spectroscopy(XPS),and optical transmittance spectrum.The thin films are hexagonal in structure,with strong preferential orientation along the(002) planes.The composition of Cd_(1-x)Zn_xS thin films monitored by a quartz crystal oscil...     

Cd0.8Zn0.2S 薄膜的结构和光学性质

采用真空共蒸发法在玻璃衬底上制备了Cd1-xZnxS薄膜,并用XRD、XRF以及光学透射谱对刚沉积薄膜的结构、组分和光学性质进行了表征。刚沉积的薄膜为六方结构,沿(002) 择优取向。XRF测试结果表明石英振荡法监控的薄膜组分与XRF 获得的结果非常好地吻合。由Cd0.8Zn0.2S薄膜的光学透射谱,通过Swanepoel 原理与Wemple- DiDomenico 单振子模型,推导出薄膜的光学参量,如折射率、单振子能量、色散能、吸收系数、光学能隙等。     

Sb2Te3薄膜的性质及光伏应用

采用真空共蒸发法在室温下沉积Sb-Te薄膜,在N2气氛中进行573K退火处理,制备出符合化学配比的Sb2Te3薄膜。将Sb2Te3薄膜用作CdTe太阳电池的背接触层,在不同温度下进行了快速退火处理,获得了效率为12.34%(Voc=805.9mV,Jsc=25.1mA/cm2,FF=0.61)的小面积太阳电池。