| Autor: |
Hang Liu, Hassan Hafeez, David B. Cordes, Alexandra M. Z. Slawin, Gavin Peters, Stephen L. Lee, Ifor D. W. Samuel, Finlay D. Morrison |
| Přispěvatelé: |
EPSRC, University of St Andrews. EaSTCHEM, University of St Andrews. School of Chemistry, University of St Andrews. Centre for Designer Quantum Materials, University of St Andrews. Condensed Matter Physics, University of St Andrews. School of Physics and Astronomy, University of St Andrews. Centre for Biophotonics |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Popis: |
H.L. would like to thank the University of St. Andrews for financial support via a St. Leonard’s scholarship. The authors acknowledge facilities access made possible through support from the EPSRC Light Element Analysis facility Grant EP/T019298/1 and the EPSRC Strategic Equipment Resource Grant EP/R023751/1. Vacancy-ordered halide perovskites have received great interest in optoelectronic applications. In this work, we report the novel inorganic halide Cs10MnSb6Cl30 with a distinctive 10H (10-layer hexagonal) perovskite polytype structure with (hcccc)2 stacking. Cs10MnSb6Cl30 has 30% B-site vacancies ordered at both corner- and face-sharing sites, resulting in [MnSb6Cl30]10–n columns, i.e., a reduction of octahedral connectivity to 1D. This results in enhanced photoluminescence in comparison to the previously reported 25% vacancy-ordered 3C polytype Cs4MnSb2Cl12 with 2D connectivity. This demonstrates not only the existence of the 10H perovskite structure in halides but also demonstrates the degree of B-site deficiency and stacking sequence variation as a direction to tune the optical properties of perovskite polytypes via vacancy rearrangements. Publisher PDF |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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