Tuning Heterojunction Consisted of Rutile and Anatase Tio2 to Enhance Photocatalytic Hydrogen Generation and Power Conversion Efficiency of Photovoltaic Devices

In this project “Tuning heterojunction consisted of rutile and anatase TiO2 to enhance photocatalytic hydrogen generation and power conversion efficiency of photovoltaic devices”，it propose to apply hydrothermal method and dip-coating method with calcination process to synthesize the heterojunction TiO2 with long exciton lifetime. To discuss the kinetics of photo-induced electron-hole pairs between anatase and rutile interface, the time resolved photoluminescence spectroscopy and photocatalytic degradation of organic dyes measurement will be carried out. The heterojunction TiO2 with the high photocatalytic activity can be produced by adjusting the proportion of anatase and rutile phase of TiO2, and subsequently the various metal nanoparticles were decorated on the heterojunction TiO2 surface via the photodeposition method. Then photocatalytic hydrogen production measurement would be further discuss. The “hysteresis” is a troublesome problem in n-i-p type perovskite solar cells and needed to be solved. We consider that the synthesized heterojunction titanium dioxide would be an appropriate candidate as mesoporous electron transport layer. We believe it can efficiently enhance the electron transportation, reduce hysteresis phenomena and further increase the power conversion efficiency of perovskite solar cells. During the two years, we will publish 6 SCI papers (IF ＞3.0) and 6 international conference papers, and file 1 patent application. By the end of program, we will transfer our technology to industry for further development into commercial products. A funding level of about 980,000 TWD per year is requested.

Project ID:PB10507-1015
External Project ID:MOST105-2221-E182-011