Events

Coming Colloquium

 

HONG KONG BAPTIST UNIVERSITY
Department of Physics &
Institute of Advanced Materials

 

JOINT COLLOQUIUM

 

Ion Migration in Organometal Trihalide Perovskites and Its Impacts on Photovoltaics

 

Speaker:
Prof. Yongbo Yuan
School of Physics & Electronics
Central South University, Changsha, Hunan, China

 

Date: March 8, 2018 (Thursday)
Time: 11:30am – 12:30pm
Venue: SCT909, Science Tower, HSH Campus


Abstract
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Organometal trihalide perovskite (OTP) solar cells might be the next commercially available thin film solar cells due to its high power conversion efficiency and low fabrication cost, which should attributed to the fantastic optoelectronic properties of OTP materials. Recent years’ studies disclosed that OTP is actually a kind of soft materials with both charge carrier conduction and ionic conduction. Increasing observations indicate that mobile ions impact a lot on the electronic/optoelectric properties of OTP film, which hence have raised substantial related studies already. In this presentation, we will introduce the current understanding of ion migration behaviors in OTP solar cells and discuss its impacts on the photovoltaic device efficiency and stability. Besides, the emerging efforts about suppressing ion migration in perovskite films will be reported.



All Interested Are Welcome!
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