Efficient and stable perovskite solar cells are created with the participation of the Zelinsky Institute

Perovskite solar cells are a promising new photovoltaic technology. These devices combine the manufacturability and scalability of organic photovoltaic cells with the high efficiency of silicon-based solar cells. At the moment, perovskite solar cells demonstrate energy conversion efficiency at the level of 25%. However, their low operational stability is a major obstacle to the transition of perovskite solar cells from research laboratories to industrial production.

An international team of scientists with the participation of researchers from the ZIOC is working to study the possibility of using adamantane and azaadamantane derivatives as stabilizing modifiers that improve the performance and stability of perovskite solar cells. In one of the recent works, a comparative study was made of the effect of additives of quaternary derivatives of 1,3,5,7-tetraazadamantane (urotropine) and 1,4,6,10-tetraazaadamantane (isourotropine) on the photo- and thermal stability of polycationic perovskites based on lead halides. It has been shown that 1,4,6,10-tetraazaadamantane with three OH groups attached to nitrogen atoms and a protonated tertiary amine vertex exhibits an impressive stabilizing effect in two types of perovskite materials. Using a set of complementary experimental and theoretical approaches, the observed stabilizing ability was explained. The developed absorbing materials have record stability indicators among perovskites based on lead halides. The results obtained are a significant contribution to the introduction of perovskite photovoltaic technology into mass consumption.

Source

V.V. Ozerova, N.A. Emelianov, L.G. Gutsev, D.V. Korchagin, G.V. Shilov, N.N. Dremova, B.R. Ramachandran, A.Y. Sukhorukov, S.M. Aldoshin, L.A. Frolova, P.A. Troshin Enhanced photostability of multication lead halide perovskites through the use of azaadamantane-based modifiers // Mater. Today Chem. 2023, 30, 101590. DOI: 10.1016/j.mtchem.2023.101590.