ZnS包覆TiO_2/CdS纳米结构的光电化学性能研究  

Photoelectrochemistry performance of ZnS cladded TiO_2/CdS nanostructures

作　　者：康瑞琴[1] 杨爽[1] 王海鹏 郭常颖[3] 

机构地区：[1]安阳工学院,安阳455000 [2]安阳市环保局,安阳455000 [3]空军勤务学院,徐州221000

出　　处：《化工新型材料》2015年第8期158-159,165,共3页New Chemical Materials

基　　金：国家青年科学基金项目(U1404217)

摘　　要：采用水热法将CdS量子点沉积在TiO2纳米棒阵列上,在CdS量子点外表面包覆ZnS纳米层。经过ZnS纳米层包覆后,TiO2/CdS电极对可见光的吸收强度没有改变。光电化学测试结果表明,ZnS纳米层包覆可以极大提高TiO2/CdS量子点敏化太阳能电池的光电转化效率。原因分析是ZnS纳米层可以抑制电子-空穴对的重组。CdS Quantum dots were deposited on TiO2 nanorod arrays via hydrothermal method,and then the ZnS nanolayers were cladded on the CdS Quantum dots. The ZnS nanolayers had not change the absorption intensity of UV-Vis spectroscopy. The result of photoelectrochemistry performance showed that after ZnS cladded,the photoelectric conversion efficiency of TiO2/CdS Quantum dots solar cell was impoved. The reason was that the ZnS nanolayers inhibited the recom- bination of electron-hole pairs.

关 键 词：ZnS纳米层 TiO2/CdS 光电化学性质 重组 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]