Water resistant CsPbX3 nanocrystals coated with polyhedral oligomeric silsesquioxane and their use as solid state luminophores in all-perovskite white light-emitting devices

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Bingkun Chen
  • Tak Fu Hung
  • Andrei S. Susha
  • Haizheng Zhong

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Detail(s)

Original languageEnglish
Pages (from-to)5699-5703
Journal / PublicationChemical Science
Volume7
Issue number9
Publication statusPublished - 13 Jun 2016

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Abstract

We present an approach towards stable solid-state perovskite based luminophores with different emission colors via surface protection of CsPbX3 (X = Br or I) with a polyhedral oligomeric silsesquioxane (POSS). This treatment results in water resistant perovskite nanocrystal powders, and prevents otherwise easy anion exchange between perovskite nanocrystals of different compositions mixed together in the solid state, which allows us to preserve their distinct emission spectra. We subsequently used mixtures of green-emitting POSS-CsPbBr3 and red-emitting POSS-CsPb(Br/I)3 nanocrystal powders to fabricate single layer all-perovskite down conversion white light-emitting devices.

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Citation Format(s)

Water resistant CsPbX3 nanocrystals coated with polyhedral oligomeric silsesquioxane and their use as solid state luminophores in all-perovskite white light-emitting devices. / Huang, He; Chen, Bingkun; Wang, Zhenguang; Hung, Tak Fu; Susha, Andrei S.; Zhong, Haizheng; Rogach, Andrey L.

In: Chemical Science, Vol. 7, No. 9, 13.06.2016, p. 5699-5703.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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