Mechanochemistry-driven engineering of 0D/3D heterostructure for designing highly luminescent Cs-Pb-Br perovskites.

Autor: Baek KY; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea., Lee W; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.; R&D Center, SK Hynix Inc., Icheon-si, Gyeonggi-do, 17336, Korea., Lee J; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea., Kim J; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea., Ahn H; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea., Kim JI; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea.; Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Korea., Kim J; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.; Samsung Electronics Co., Pyeongtaek-si, Gyeonggi-do, 17786, Korea., Lim H; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea., Shin J; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea., Ko YJ; Laboratory of Nuclear Magnetic Resonance, National Center for Inter-University Research Facilities, Seoul National University, Seoul, 08826, Korea., Lee HD; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea., Friend RH; Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, UK., Lee TW; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea. twlees@snu.ac.kr.; Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Korea. twlees@snu.ac.kr.; School of Chemical and Biological Engineering, Institute of Engineering Research, Soft Foundry, Seoul National University, Seoul, 08826, Korea. twlees@snu.ac.kr., Lee J; School of Earth and Environmental Sciences, Seoul National University, Seoul, 08826, Korea. jl635@snu.ac.kr., Kang K; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea. keehoon.kang@snu.ac.kr.; Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Korea. keehoon.kang@snu.ac.kr.; Institute of Applied Physics, Seoul National University, Seoul, 08826, Korea. keehoon.kang@snu.ac.kr., Lee T; Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea. tlee@snu.ac.kr.; Institute of Applied Physics, Seoul National University, Seoul, 08826, Korea. tlee@snu.ac.kr.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Jul 23; Vol. 13 (1), pp. 4263. Date of Electronic Publication: 2022 Jul 23.
DOI: 10.1038/s41467-022-31924-x
Abstrakt: Embedding metal-halide perovskite particles within an insulating host matrix has proven to be an effective strategy for revealing the outstanding luminescence properties of perovskites as an emerging class of light emitters. Particularly, unexpected bright green emission observed in a nominally pure zero-dimensional cesium-lead-bromide perovskite (Cs 4 PbBr 6 ) has triggered intensive research in better understanding the serendipitous incorporation of emissive guest species within the Cs 4 PbBr 6 host. However, a limited controllability over such heterostructural configurations in conventional solution-based synthesis methods has limited the degree of freedom in designing synthesis routes for accessing different structural and compositional configurations of these host-guest species. In this study, we provide means of enhancing the luminescence properties in the nominal Cs 4 PbBr 6 powder through a guided heterostructural configuration engineering enabled by solid-state mechanochemical synthesis. Realized by an in-depth study on time-dependent evaluation of optical and structural properties during the synthesis of Cs 4 PbBr 6 , our target-designed synthesis protocol to promote the endotaxial formation of Cs 4 PbBr 6 /CsPbBr 3 heterostructures provides key insights for understanding and designing kinetics-guided syntheses of highly luminescent perovskite emitters for light-emitting applications.
(© 2022. The Author(s).)
Databáze: MEDLINE
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