Development of high efficiency dye-sensitized solar cells combing the ZnO nanostructures and carbon nanotubes as the electrodes

2014 Fiscal Year Final Research Report

• Project/Area Number: 24561060
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Energy engineering
• Research Institution: Kochi University of Technology
• Principal Investigator: LI CHAOYANG 高知工科大学, 公私立大学の部局等, 教授 (50461380)
• Co-Investigator(Kenkyū-buntansha): KAWAHARAMURA Toshiyuki (00512021) ; FURUTA Hiroshi (10389207)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 太陽電池 / ナノ構造 / 酸化物 / 透明導電膜

Outline of Final Research Achievements

A novel dye-sensitized solar cell using ZnO nanostructures as photoanodes was fabricated successfully. The conductive and low-cost ITO substrates were synthesized, which was comparable to the commercial ones. The novel multiple-annealing process was developed for fabricating the ZnO nanostructures, the high-alignment, high transparency, and high stability of ZnO nanostructures were achieved at the low temperature. The morphology of ZnO nanorods was successfully modified by the mist CVD method.The large area and controllable ZnO nanorods were achieved, which contributed to the high efficiency absorption of dye.Finally the dye-sensitized solar cell was demonstrated using both ZnO nanorods and the TiO2 coated ZnO as photoanodes. The overall conversion efficiency of demonstrated ZnO-based solar cell was 5.48%.
This research supplied the new ideal and technique to fabricate the environment friendly solar cell, with the low cost and easy process.

Free Research Field

材料工学