Ozen S.Guner T.Topcu G.Ozcan M.Demir M.M.Sahin, H.2023-11-092023-11-09201940021-897910.1063/1.50927792-s2.0-85067231829https://doi.org/10.1063/1.5092779http://standard-demo.gcris.com/handle/123456789/476Herein, we report room temperature Cr-doping for all-inorganic perovskites that have attracted great attention in recent years due to their extraordinary optical properties, low cost, and ease of synthesis. Incorporation of Cr 3 + ions into the perovskite crystal lattices is achieved by following a facile route involving an antisolvent recrystallization method at room temperature. It is shown that both Cr-doping and formation of crystals in the CsPbBr x Cl 3 - x phase are provided by increasing the concentration of the CrCl 3 solution. It is also observed that the doping procedure leads to the emergence of three types of distinctive peaks in the PL spectrum originating from CsPbBr x Cl 3 - x domains (476-427 nm), Cr-strained host lattices (515 nm), and midgap states formed by Cr dopants (675-775 nm). It is also found that the Cr-doped perovskites emitting a dark violaceous color change their color to white with a high color rendering index (88) in 30-day time intervals. Easy-tunable optical properties of all-inorganic Cs perovskites indicate their great potential for future optoelectronic device applications. © 2019 Author(s).eninfo:eu-repo/semantics/openAccess[No Keyword Available]Article