Improved Voltage and Fill Factor by Using Zinc Oxide Thin Film as a Barrier Layer in Dye-Sensitized Solar Cells
WANG Peng, WANG Li-Duo, LI Bin, QIU Yong
Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education Department of Chemistry, Tsinghua University, Beijing 100084
Improved Voltage and Fill Factor by Using Zinc Oxide Thin Film as a Barrier Layer in Dye-Sensitized Solar Cells
WANG Peng;WANG Li-Duo;LI Bin;QIU Yong
Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education Department of Chemistry, Tsinghua University, Beijing 100084
Abstract： A series of dye-sensitized solar cells based on ZnO-modified TiO2 nano-porous films have been prepared. The current--voltage characteristics of the cells show that the ZnO-modification can improve the open-circuit voltage and the fill factor but can decrease the short-circuit current. Dark current and transient photovoltage measurements are used to study the back reaction. It is indicated that the recombination process is suppressed by blocking the hole transporting from the nano-porous TiO2 since the surface of the semiconductor is almost fully covered with ZnO as a barrier layer.
(Optoelectronic device characterization, design, and modeling)
引用本文:
WANG Peng;WANG Li-Duo;LI Bin;QIU Yong. Improved Voltage and Fill Factor by Using Zinc Oxide Thin Film as a Barrier Layer in Dye-Sensitized Solar Cells[J]. 中国物理快报, 2005, 22(10): 2708-2710.
WANG Peng, WANG Li-Duo, LI Bin, QIU Yong. Improved Voltage and Fill Factor by Using Zinc Oxide Thin Film as a Barrier Layer in Dye-Sensitized Solar Cells. Chin. Phys. Lett., 2005, 22(10): 2708-2710.
2005, Vol. 22 
