期刊
ACS APPLIED MATERIALS & INTERFACES
卷 5, 期 22, 页码 11865-11871出版社
AMER CHEMICAL SOC
DOI: 10.1021/am4035653
关键词
macroporous Zn2SnO4; ZnO nanorods; electrodeposition; CdS; CdSe; quantum dot-sensitized solar cells
资金
- National Natural Science Foundation of China [91222201, U0934003]
- Program for New Century Excellent Talents in University [NCET-11-0533]
- Fundamental Research Funds for the Central Universities
- Research Fund for the Doctoral Program of Higher Education [20100171110014]
- NSF of Guangdong Province [S2013030013474]
A hierarchical macroporous Zn2SnO4-ZnO nanorod composite film is prepared through a drop-casting process of PS@Zn2SnO4 and subsequent hydrothermal growth of ZnO nanorod. CdS/CdSe co-sensitized solar cells based on the macroporous Zn2SnO4-ZnO nanorod composite photoelectrode exhibits an enhancement of 34.4% in power conversion efficiency (1.68%) compared to the pristine macroporous Zn2SnO4 photoelectrode (1.25%). Especially worth noting is that the growth of ZnO nanorods contributes greatly to the enlargement of surface area and improvement of light scattering ability of the composite film, which dominates the increase of J(sc) values and eventual power conversion efficiency. QDSSCs based on the optimized 9 mu m thick composite photoanode film exhibits a power conversion efficiency of 2.08%, which is the highest value for the reported QDs sensitized solar cells based on the Zn2SnO4 photoelectrode.
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