"Studies on a perovskite photovoltaic device suggest that improved stability, one of the hurdles to large-scale applicability of perovskites in solar cells, can be achieved."

                                                                                                —— Prof. Karl Leo

NatureNanotechnology 2015, 10,  574-575

"The results are extremely encouraging and imply that the perovskite is not fundamentally unstable inambient conditions."

"Currently, perovskite solar cells (PSCs) based on the "triple layer" architecture with a thick carbon back electrode have demonstrated perhaps the most stable performance characteristics of all PSCs."

            —— Prof. Henry J. Snaith, University of Oxford

Nature Nanotechnology 2015, 10, 391

Adv. Energy Mater. 2016, 6, 1600014.

"Based on the pioneering work by Mei et al.（Han Group), we developed HTM-free solar cells, being at present the cheapest, fully printable low-cost deposition process."

—— Prof. MK Nazeeruddin, EPFL

Nature Comm. 2017, 8, 15684.