Preparation and Characterization of Quantum-Dot Sensitized Photo-Electrode

Solar energy related technology has become more and more important in recent years. Major applications include solar cells and solar-thermal technology. Utilization of solar energy into electrical power using low cost solar cells will be the ultimate goal for a future clean energy society. Current research directions of solar cells focus on the development of dye-sensitized solar cells and quantum dots-sensitized solar cells with low-cost, larger area and high efficiency for solar energy applications. The highest solar to electrical power conversion efficiency of dye-sensitized solar cells and PbSe quantum dots sensitized solar cells are around 12.3 % and 6%, respectively. However, the larger area manufactured technology and the cost of materials remain challenges. Moreover, materials developments, preparations with low-cost for large area manufactured technology and the composition of quantum dots sensitized photoelectrodes for quantum dots/dye sensitized solar cells have to be taken into consideration. Therefore, this project focuses on the preparation of quantum dots metal sulfides and quantum dots metal selenides using hydrothermal/ solvothermal synthesis. The subjects of this project are the synthesis of quantum dots metal sulfides, quantum dots metal selenides and the development of quantum dots/dye sensitized solar cells. The effects of structural, compositions and electrical properties of these quantum dots on the conversion efficiency of solar cells will be realized. This project is consisted of fundamental investigations of materials synthesis, theoretical analysis, and design of the solar cell modulus using quantum dots/dye-sensitized solar cells. We believe that our approach can be the cornerstone of developing high efficiency solar cells for solar energy applications.

Project ID:PB10301-1571
External Project ID:NSC101-2221-E182-018-MY3