Enhanced blue emission from CsPb(Br/Cl)3perovskite nanocrystals by localized surface plasmon resonance of Au nanoparticles

Liang Bao; Wenqiang Liu; Yonghua Chen; Yanbo Zhang; Yang Zhang

doi:10.1039/d0tc05535b

Enhanced blue emission from CsPb(Br/Cl)₃perovskite nanocrystals by localized surface plasmon resonance of Au nanoparticles

Liang Bao, Wenqiang Liu, Yonghua Chen, Yanbo Zhang, Yang Zhang

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

9 Scopus citations

Abstract

The local surface plasmon resonance effect induced by metal nanoparticles on perovskites provides a powerful approach to enhance the photoluminescence of such all-inorganic systems. Here, we show that the decoration of CsPb(Br/Cl)₃nanocrystals (NCs) with Au nanoparticles (NPs) leads to a significant enhancement of the blue emission centered at 465 nm, resulting in a photoluminescence quantum yield (PLQY) of up to 73%. Our simulations based on finite difference time domain (FDTD) analysis indicate that the distance between the Au NPs and CsPb(Br/Cl)₃NCs plays a crucial role in determining the local electric field intensity. Our data suggest that an excessive decoration of CsPb(Br/Cl)₃NCs with Au NPs can also reduce the PLQY, as a result of decreased coupling strength.

Original language	English
Pages (from-to)	5182-5189
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	9
Issue number	15
DOIs	https://doi.org/10.1039/d0tc05535b
State	Published - 21 Apr 2021
Externally published	Yes

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title = "Enhanced blue emission from CsPb(Br/Cl)3perovskite nanocrystals by localized surface plasmon resonance of Au nanoparticles",

abstract = "The local surface plasmon resonance effect induced by metal nanoparticles on perovskites provides a powerful approach to enhance the photoluminescence of such all-inorganic systems. Here, we show that the decoration of CsPb(Br/Cl)3nanocrystals (NCs) with Au nanoparticles (NPs) leads to a significant enhancement of the blue emission centered at 465 nm, resulting in a photoluminescence quantum yield (PLQY) of up to 73%. Our simulations based on finite difference time domain (FDTD) analysis indicate that the distance between the Au NPs and CsPb(Br/Cl)3NCs plays a crucial role in determining the local electric field intensity. Our data suggest that an excessive decoration of CsPb(Br/Cl)3NCs with Au NPs can also reduce the PLQY, as a result of decreased coupling strength.",

author = "Liang Bao and Wenqiang Liu and Yonghua Chen and Yanbo Zhang and Yang Zhang",

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doi = "10.1039/d0tc05535b",

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T1 - Enhanced blue emission from CsPb(Br/Cl)3perovskite nanocrystals by localized surface plasmon resonance of Au nanoparticles

AU - Bao, Liang

AU - Liu, Wenqiang

AU - Chen, Yonghua

AU - Zhang, Yanbo

AU - Zhang, Yang

PY - 2021/4/21

Y1 - 2021/4/21

N2 - The local surface plasmon resonance effect induced by metal nanoparticles on perovskites provides a powerful approach to enhance the photoluminescence of such all-inorganic systems. Here, we show that the decoration of CsPb(Br/Cl)3nanocrystals (NCs) with Au nanoparticles (NPs) leads to a significant enhancement of the blue emission centered at 465 nm, resulting in a photoluminescence quantum yield (PLQY) of up to 73%. Our simulations based on finite difference time domain (FDTD) analysis indicate that the distance between the Au NPs and CsPb(Br/Cl)3NCs plays a crucial role in determining the local electric field intensity. Our data suggest that an excessive decoration of CsPb(Br/Cl)3NCs with Au NPs can also reduce the PLQY, as a result of decreased coupling strength.

AB - The local surface plasmon resonance effect induced by metal nanoparticles on perovskites provides a powerful approach to enhance the photoluminescence of such all-inorganic systems. Here, we show that the decoration of CsPb(Br/Cl)3nanocrystals (NCs) with Au nanoparticles (NPs) leads to a significant enhancement of the blue emission centered at 465 nm, resulting in a photoluminescence quantum yield (PLQY) of up to 73%. Our simulations based on finite difference time domain (FDTD) analysis indicate that the distance between the Au NPs and CsPb(Br/Cl)3NCs plays a crucial role in determining the local electric field intensity. Our data suggest that an excessive decoration of CsPb(Br/Cl)3NCs with Au NPs can also reduce the PLQY, as a result of decreased coupling strength.

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DO - 10.1039/d0tc05535b

M3 - 文章

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JO - Journal of Materials Chemistry C

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IS - 15

ER -

Enhanced blue emission from CsPb(Br/Cl)₃perovskite nanocrystals by localized surface plasmon resonance of Au nanoparticles

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