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Research Seminar of Prof. Hongxia Wang from Queensland University of Technology (QUT)

Research Seminar of Prof. Hongxia Wang from Queensland University  of Technology (QUT)

Lecture Time:  10:00 on 10th June, 2019

Lecture Room: C501 of Science and Innovation Building

Lecture Title: Perovskite Solar Cells __ Challenges and Opportunities

Hongxia Wang

Queensland University  of Technology (QUT)


The past ten years have witnessed the skyrocketing progress of perovskite solar cells (PSCs) using organic-inorganic lead halides as light absorber with current energy conversion efficiency over 24% achieved with cost-effective fabrication methods. Although the power conversion efficiency of PSCs is comparable and competitiveto other commercially available solar cells such as monocrystalline silicon solar cells, critical issues such as unsatisfactory stability and current-voltage hysteresis associated with perovskite solar cells (PSCs) are obstacles that restrict the commercialisation ofPSC technology. The root for the poor stability and hysteresis of PSCs is believed to be related with the unique properties of the perovskite material, which could be solved through material engineering and through optimized device architecture. In my talk, I will present the recent studiesaddressing issues with PSCs with focus on material engineering such as material doping and use of water-resistive hole transport materials. Dopantssuch as small molecule or alkaline cations incorporated to the perovskite film have shown dramatic effect on tuning the device hysteresis. Strategies which could overcome the stability and hysteresis issue of PSCs devices will be discussed.


Hongxia Wang is an associate professor in School of Chemistry, Physics and Mechanical Engineering at Queensland University of Technology (QUT). She is currently leading a research group at Queensland University of Technology (QUT) dedicating to development of new routes to enhance performance and stability of next generation solar cells, in particular dye-sensitized solar cells, perovskite solar cells and energy storage devices such as supercapacitors through innovative material engineering and device engineering. She has published over 125 peer-reviewed scientific journal papers and some of her papers are in the list of ESI high impact papers. She was awarded “Solar Energy Journal Best Paper Award for 2016 in the topic of Photovoltaics” by International Solar Energy Society. She has been the recipient of threeAustralian fellowships including Australian Postdoctoral Fellowship (Industry, APDI), Australian ARC Future Fellowship and QUT Vice-Chancellor Senior Research Fellow.


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