• [CBE Seminar] Ph.D. Jangwon Seo(KRICT) Jul 24, 10:30
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  • 2019-07-15 09:31:43|
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생명화학공학과에서는 한국화학연구원 서장원 박사님을 모시고 아래와 같이 세미나를 개최하오니

많은 관심과 참여 부탁드립니다.


Please come and join the seminar. Find the details below.



 Speaker: Ph.D. Jangwon Seo(KRICT)


 Schedule: Jul 24(Wed), 2019 / 10:30


 Place: Seminar room 1 (#1101) @ W1-3 Bldg.

 Title: Interfacial Control for Efficient and Stable Perovskite Solar Cells




Organic-inorganic lead halide perovskite solar cells (PSCs) exhibit the fast development with efficiency growing from 3.8% in 2009 to 24.2% in 2019. Current PSCs intended for commercialization in the near future require both high efficiency and good long-term stability. Most highly efficient PSCs utilize an n-type layer of mesoporous titanium dioxide or tin oxide in an n-i-p device configuration, in which organic conductors are widely used to transport holes into an adjoined metal. Thus far, a variety of efforts have been devoted to achieve a defect-less perovskite film with high-quality morphologies to realize reduced loss-in-potential outcomes and enhanced efficiency levels. In this talk, we will discuss several challenges that need to be addressed in improving the photovoltaic performance and the stability of the perovskite solar cells, i.e. (1) preparation of high crystalline film of (FAPbI3)1-x(MAPbBr3)x with a large grain size and a preferred orientation, (2) development of selective charge-transporting layers (CTL) with a superior stability, (3) interfacial control and energy level matching between the perovskite and the CTLs. We also continue to present our approach for realizing a long-term operating stability of PSCs with respect to the ion migration and the solid encapsulation. Our strategy as presented in this work will offer new directions for those involved in the fabrication of highly efficient and stable PSCs





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