%0 Journal Article
%A Stroyuk, Oleksandr
%A Raievska, Oleksandra
%A Daum, Manuel
%A Kupfer, Christian
%A Osvet, Andres
%A Hauch, Jens
%A Brabec, Christoph
%T Experimental design of (Cs,Rb) 2 Sn(Bi)Cl 6 blue phosphors by cation-substitution-induced lattice strain
%J Journal of materials chemistry / C
%V 13
%N 5
%@ 2050-7526
%C London [u.a.]
%I RSC
%M FZJ-2025-01535
%P 2303-2311
%D 2025
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001370987800001
%R 10.1039/D4TC03749A
%U https://juser.fz-juelich.de/record/1038552
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