【摘要】 <正>CdS纳米材料由于具有良好的可见光光电性质而成为太阳能利用研究中的热点[1],特别是近年来对CdS进行修饰和改性构成具有异质界面的复合材料,能够提高光生电荷的分离效率,减缓光腐蚀,更多还原

【Abstract】 The photo-generated charges characteristics of CdS/ZnO heterostructures materials were studied by means of surface photovoltage techniques.The results show that the photovoltage intensities of CdS/ZnO heterostructures materials decrease comparing with that of CdS.From the results of transient photovoltage measurement,the photo-generated electrons of CdS can transfer to ZnO since an electric field formed on the interface between CdS and ZnO.But this field is too weak to dominate the photo-generated charges characteristics.This result indicates that photo-generated charges characteristics can be clarified furthermore by means of surface photovoltage phase and transient photovoltage techniques.更多还原