Preparation of High Absorption Core-Shell Black Hydrogenated Tio2 Nanocrystals and Its Applications of Photo-Electron and Photochemical Conversion

Photocatalytic processes can be used to address several aspects of modern renewable energy production. Titanium dioxide (TiO2) is probably the most promising photocatalyst being environmentally friendly, with low cost, good photocatalytic activity and excellent photostability as demonstrated in electrochemical photolysis of water to produce hydrogen. A conceptually different approach to enhancing solar absorption by introducing disorder in the surface layers of nanophase TiO2 through hydrogenation has been reported in recently years. The proposal entitled ‟Preparation of High Absorption Core-Shell Black Hydrogenated TiO2 Nanocrystals and Its Applications of Photo-electron and Photochemical Conversion" is a two-year program. The objective in this proposal is to develop high-performance core-shell black hydrogenated TiO2 for the photo-electron and photochemical conversion applications. Moreover, we will setup a useful guide for searching the correlation between the surface potential change with/without irradiation and photocatalytic activity of core-shell black hydrogenated TiO2 by photo-Kelvin probe force microscopy. Finally, we will adopt the core-shell black hydrogenated TiO2 nanocrystals to fabricate the electron transporting layer of high-efficiency dye-sensitized solar cells (DSSCs) due to the high-surface-area and the high absorption. Photoelectrons generated by the photoexcitation of dye molecules will inject into the conduction band edge of the core-shell black hydrogenated TiO2. During the two years, we will publish 6 SCI papers (IF＞3.0), 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 880,000 TWD per year is requested.

Project ID:PB10308-2694
External Project ID:MOST103-2221-E182-008-MY2