期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 112, 期 51, 页码 20560-20566出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp806645c
关键词
-
资金
- Key Laboratory of Organic Synthesis of Jiangsu Province
- Education Department of Jiangsu Province
- National Natural Science Foundation of China [20601020]
A large-area, nest-like ZnO nanowires (NWs) array was prepared through the oxidation reaction between zinc foil and (NH(4))(2)S(2)O(8) at 150 degrees C for 18 h. CdTe quantum dots (QDs) were linked chemically to the array to form CdTe/ZnO heterostructures based on the good affinity of carboxyl to zinc ions. The molar content of CdTe in the heterostructures can be controlled at the level of 1.2%, 5.1%, and 11.4%, which depends on the soaking time of ZnO array in CdTe solution. The measurements of the optical properties of the as-prepared CdTe/ZnO heterostructures reveal that they can harvest incident lights more efficiently than can unmodified ZnO NWs arrays, whose reflectance was decreased about 20%. The good light-trapping effect and the attachment of CdTe QDs significantly improve the photovoltaic properties of the heterostructure and result in a good rectifying behavior. The photoanode based on the heterostructures has open-circuit voltages of 0.5-0.6 V and a short-circuit current of 0.3 mA/cm(2).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据