Experimental design of (Cs,Rb)2Sn(Bi)Cl6 blue phosphors by cation-substitution-induced lattice strain

Stroyuk O, Raievska O, Daum M, Kupfer C, Osvet A, Hauch J, Brabec C (2024)

Publication Type: Journal article

Publication year: 2024

Journal

DOI: 10.1039/d4tc03749a

Abstract

A mild high-throughput synthesis of doubly substituted (CsxRb1−x)2SnyBi1−yCl6 perovskites yields single-phase solid-solution compounds in the compositional domain of x = 0-1 and y ≥ 0.75. Bi-substituted compounds emit relatively intense and broadband blue photoluminescence (PL) peaked at 455 nm, originating from the self-trapped excitonic states. Both Sn/Bi and Cs/Rb substitutions were found to exert a lattice strain with the maximal strain magnitudes observed close to x = 0.5 and y = 0.90. The PL parameters of the single-phase (CsxRb1−x)2SnyBi1−yCl6 samples, in particular, the PL intensity and lifetime, as well as the rate constants of radiative and non-radiative recombination, correlate with the strain magnitude.

Authors with CRIS profile

Additional Organisation(s)

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) Germany (DE) Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (HI-ERN) Germany (DE)

How to cite

APA:

Stroyuk, O., Raievska, O., Daum, M., Kupfer, C., Osvet, A., Hauch, J., & Brabec, C. (2024). Experimental design of (Cs,Rb)2Sn(Bi)Cl6 blue phosphors by cation-substitution-induced lattice strain. Journal of Materials Chemistry C. https://doi.org/10.1039/d4tc03749a

MLA:

Stroyuk, Oleksandr, et al. "Experimental design of (Cs,Rb)2Sn(Bi)Cl6 blue phosphors by cation-substitution-induced lattice strain." Journal of Materials Chemistry C (2024).

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