Ion migration in perovskites
1. The study of the segregation process in organic-inorganic and inorganic perovskites and devices based on them
Despite the large number of perovskites benefits, the problem of phase instability (segregation) is still very serious especially for optoelectronic devices based on perovskites. In the laboratory of hybrid nanophotonics and optoelectronics, studies of the segregation process are carried out in order to create stable devices.
1. Liashenko, T. G., Cherotchenko, E. D., Pushkarev, A. P., Pakštas, V., Naujokaitis, A., Khubezhov, S. A., ... & Makarov, S. V. (2019). Electronic structure of CsPbBr 3− x Cl x perovskites: synthesis, experimental characterization, and DFT simulations. Physical Chemistry Chemical Physics, 21(35), 18930-18938.
2. Gets, D. S., Tiguntseva, E. Y., Berestennikov, A. S., Liashenko, T. Y. G. E., Pushkarev, A. P., Makarov, S. V., & Zakhidov, A. A. (2018). Photoinduced migration of ions in optically resonant perovskite nanoparticles. JETP Letters, 107(12), 742-748.
2. Study of the process of ion migration in perovskite devices
Ionic migration in perovskites is usually viewed as a negative process. The purpose of these studies is studying its positive properties, mechanisms of its process and application in devices.
Gets, D. S., Verkhogliadov, G. A., Danilovskiy, E. Y., Baranov, A. I., Makarov, S. V., & Zakhidov, A. A. (2020). Dipolar cation accumulation at the interfaces of perovskite light-emitting solar cells. Journal of Materials Chemistry C.