Internal Seminar: Qi Unit

Join us for June's second Internal Seminar Series on June 26, from 17:30 to 18:00 in B250. This month's second seminar features the Energy Materials and Surface Sciences Unit (Yabing Qi).

Energy Materials and Surface Sciences Unit (Yabing Qi)

Speaker : Luis Katsuya Ono

Title : Stability issues in perovskite-based solar cells: Considerations beyond efficiency.

Abstract : Organo-lead-halide perovskite (OHP) based solar cells are the new solar cells that hold promises for large-scale solar-to-electricity conversion at low-cost. Optimization in perovskite synthesis and device architecture has led to record power conversion efficiencies as high as 20.1% in five years. On the other hand, there are few studies providing the data on the lifetime and possible degradation mechanisms of OHP-based solar cells under operation conditions (e.g. under light and cell operated at maximum power point). In this talk, I will discuss on the current understanding on the mechanisms for the degradation and strategies to fabricate OHP cells with longer lifetimes.

[1] Z. Hawash, L.K. Ono, S.R. Raga, M.V. Lee and Y.B. Qi*, Chem. Mater., 27 (2015) 562.
[2] L.K. Ono+, S.R. Raga+, M. Remeika, A.J. Winchester, A. Gabe and Y.B. Qi*, J. Mater. Chem. A (2015) DOI: 10.1039/C5TA03443D (+Contributed equally)