Description of field of research:

The developing crisis of global climate change has been pushing human society to replace fossil fuels with clean and renewable energies ASAP. Technologies utilizing solar energy such as photovoltaics and solar fuels are regarded as the most promising solutions. While the performance of these technologies is largely determined by the active deep defects in the solar harvesting materials. The characterization of the active deep defects in solar harvest materials still remains a critical challenge. This project aims at establishing a comprehensive defect characterization platform for emerging solar harvesting materials, based on optical-deep level transient spectroscopy (O-DLTS) technology, which can probe both minority- and majority-carrier traps at different regions of materials. A series of emerging materials (kesterites, antimony chalcogenides, chalcopyrites,) will be characterized based on this platform.

Research Area

Solar energy |
Characterization for semiconductors

The student will work closely with 2 senior researchers in one of the most productive research groups in SPREE. There is more than 20 talented research staff (including PhDs and Post-docs) in the group leading by the Prime Minister's Prizes and Pawsey Meda winner Associate Professor and Scientia Fellow Xiaojing Hao. Our main efforts focus on developing new photovoltaic technologies and materials. 

The student will assist to develop and perform the optical-electrical DLTS measurement on different types of thin-film solar cells. The main outcome of the project includes:
1. A summary and brief of literature review, mechanism, and procedure of temperature-dependent capacitance-based defect characterization.
2. Experiment reports of DLTS measurement of 3 different types of thin-film solar cell device, including CZTSSe, CIGS, and Sb2(S,Se)3.