CsPbX3/Cs4PbX6 core/shell perovskite nanocrystals

CsPbX3/Cs4PbX6 core/shell perovskite nanocrystals

The synthesis of core/shell perovskite nanocrystals was demonstrated for the first time by applying a seeded growth approach. The obtained core/shell nanocrystals were shown to consist of a light-emitting CsPbX3 core with a narrow band gap and a Cs4PbX6 passivating shell with a large band gap (>3...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2018, Vol.54 (49), p.6300-6303
Hauptverfasser: Chao, Jia, Li, Hui, Meng, Xianwei, Li, Hongbo
Format: Artikel
Sprache:eng
Schlagworte:
Band gap
Nanocrystals
Perovskites
Photoluminescence
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Zusammenfassung:The synthesis of core/shell perovskite nanocrystals was demonstrated for the first time by applying a seeded growth approach. The obtained core/shell nanocrystals were shown to consist of a light-emitting CsPbX3 core with a narrow band gap and a Cs4PbX6 passivating shell with a large band gap (>3.2 eV), and to therefore display an improved photoluminescence quantum yield.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc02802h