The more the merrier: optimizing monomer concentration for supersaturation controlled synthesis of stable ultra-small CsPbBr3 nanocrystals for blue emission

Vikash Kumar Ravi; Zheng Li; Shlok Joseph Paul; Ayaskanta Sahu

doi:10.1039/d4cc00163j

The more the merrier: optimizing monomer concentration for supersaturation controlled synthesis of stable ultra-small CsPbBr₃ nanocrystals for blue emission

Vikash Kumar Ravi, Zheng Li, Shlok Joseph Paul, Ayaskanta Sahu

Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Synthesis of strongly quantum confined and emissive CsPbBr₃ perovskite nanocrystals with sizes <4 nm has proven challenging owing to fast nucleation and rapid growth. In this work, ultra-small blue-emitting (∼461 nm) CsPbBr₃ nanocrystals with an average particle size of 3.2 nm are synthesized via a high-temperature (170 °C) colloidal approach by controlling the supersaturation reaction conditions. Our approach yielded stable nanocrystals with uniform size, shape, and excellent color purity, making them promising for blue light emitting diode (LED) applications.

Original language	English (US)
Pages (from-to)	3307-3310
Number of pages	4
Journal	Chemical Communications
Volume	60
Issue number	24
DOIs	https://doi.org/10.1039/d4cc00163j
State	Published - Feb 23 2024

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Catalysis
Ceramics and Composites
General Chemistry
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/d4cc00163j

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abstract = "Synthesis of strongly quantum confined and emissive CsPbBr3 perovskite nanocrystals with sizes <4 nm has proven challenging owing to fast nucleation and rapid growth. In this work, ultra-small blue-emitting (∼461 nm) CsPbBr3 nanocrystals with an average particle size of 3.2 nm are synthesized via a high-temperature (170 °C) colloidal approach by controlling the supersaturation reaction conditions. Our approach yielded stable nanocrystals with uniform size, shape, and excellent color purity, making them promising for blue light emitting diode (LED) applications.",

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AU - Paul, Shlok Joseph

AU - Sahu, Ayaskanta

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AB - Synthesis of strongly quantum confined and emissive CsPbBr3 perovskite nanocrystals with sizes <4 nm has proven challenging owing to fast nucleation and rapid growth. In this work, ultra-small blue-emitting (∼461 nm) CsPbBr3 nanocrystals with an average particle size of 3.2 nm are synthesized via a high-temperature (170 °C) colloidal approach by controlling the supersaturation reaction conditions. Our approach yielded stable nanocrystals with uniform size, shape, and excellent color purity, making them promising for blue light emitting diode (LED) applications.

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The more the merrier: optimizing monomer concentration for supersaturation controlled synthesis of stable ultra-small CsPbBr₃ nanocrystals for blue emission

Abstract

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