Quantum efficiency control of InGaN/GaN multi-quantum-well structures using Ag/SiO 2 core-shell nanoparticles

Lee Woon Jang; Trilochan Sahoo; Dae Woo Jeon; Myoung Kim; Ju Won Jeon; Dong Seob Jo; Min Kyu Kim; Yeon Tae Yu; Alexander Y. Polyakov; In Hwan Lee

doi:10.1063/1.3671394

Quantum efficiency control of InGaN/GaN multi-quantum-well structures using Ag/SiO ₂ core-shell nanoparticles

Lee Woon Jang
, Trilochan Sahoo
, Dae Woo Jeon
, Myoung Kim
, Ju Won Jeon
, Dong Seob Jo
, Min Kyu Kim
, Yeon Tae Yu
, Alexander Y. Polyakov
, In Hwan Lee^*

^*Corresponding author for this work

Information Materials Engineering

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

20 Scopus citations

Abstract

Photoluminescence (PL) efficiency increase up to 2.8 times was observed for GaN/InGaN multi-quantum-well (MQW) structures as a result of deposition of a thin layer of about 40-nm-diameter Ag nanoparticles (NPs) surrounded by SiO ₂ shell. These Ag/SiO ₂ NPs were prepared by sol-gel method. The amount of PL intensity enhancement decreased with increasing the SiO ₂ shell thickness. PL intensity increase was accompanied by corresponding decrease of PL decay time and is ascribed to a strong coupling of MQW region to localized surface plasmons (LSPs) associated with Ag/SiO ₂ NPs.

Original language	English
Article number	251114
Journal	Applied Physics Letters
Volume	99
Issue number	25
DOIs	https://doi.org/10.1063/1.3671394
State	Published - 2011.12.19

Quacquarelli Symonds(QS) Subject Topics

Physics & Astronomy

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10.1063/1.3671394

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@article{e6ca5e3d49de4c4d85936c9c0a0490f8,

title = "Quantum efficiency control of InGaN/GaN multi-quantum-well structures using Ag/SiO 2 core-shell nanoparticles",

abstract = "Photoluminescence (PL) efficiency increase up to 2.8 times was observed for GaN/InGaN multi-quantum-well (MQW) structures as a result of deposition of a thin layer of about 40-nm-diameter Ag nanoparticles (NPs) surrounded by SiO 2 shell. These Ag/SiO 2 NPs were prepared by sol-gel method. The amount of PL intensity enhancement decreased with increasing the SiO 2 shell thickness. PL intensity increase was accompanied by corresponding decrease of PL decay time and is ascribed to a strong coupling of MQW region to localized surface plasmons (LSPs) associated with Ag/SiO 2 NPs.",

author = "Jang, \{Lee Woon\} and Trilochan Sahoo and Jeon, \{Dae Woo\} and Myoung Kim and Jeon, \{Ju Won\} and Jo, \{Dong Seob\} and Kim, \{Min Kyu\} and Yu, \{Yeon Tae\} and Polyakov, \{Alexander Y.\} and Lee, \{In Hwan\}",

year = "2011",

month = dec,

day = "19",

doi = "10.1063/1.3671394",

language = "English",

volume = "99",

journal = "Applied Physics Letters",

issn = "0003-6951",

number = "25",

}

TY - JOUR

T1 - Quantum efficiency control of InGaN/GaN multi-quantum-well structures using Ag/SiO 2 core-shell nanoparticles

AU - Jang, Lee Woon

AU - Sahoo, Trilochan

AU - Jeon, Dae Woo

AU - Kim, Myoung

AU - Jeon, Ju Won

AU - Jo, Dong Seob

AU - Kim, Min Kyu

AU - Yu, Yeon Tae

AU - Polyakov, Alexander Y.

AU - Lee, In Hwan

PY - 2011/12/19

Y1 - 2011/12/19

N2 - Photoluminescence (PL) efficiency increase up to 2.8 times was observed for GaN/InGaN multi-quantum-well (MQW) structures as a result of deposition of a thin layer of about 40-nm-diameter Ag nanoparticles (NPs) surrounded by SiO 2 shell. These Ag/SiO 2 NPs were prepared by sol-gel method. The amount of PL intensity enhancement decreased with increasing the SiO 2 shell thickness. PL intensity increase was accompanied by corresponding decrease of PL decay time and is ascribed to a strong coupling of MQW region to localized surface plasmons (LSPs) associated with Ag/SiO 2 NPs.

AB - Photoluminescence (PL) efficiency increase up to 2.8 times was observed for GaN/InGaN multi-quantum-well (MQW) structures as a result of deposition of a thin layer of about 40-nm-diameter Ag nanoparticles (NPs) surrounded by SiO 2 shell. These Ag/SiO 2 NPs were prepared by sol-gel method. The amount of PL intensity enhancement decreased with increasing the SiO 2 shell thickness. PL intensity increase was accompanied by corresponding decrease of PL decay time and is ascribed to a strong coupling of MQW region to localized surface plasmons (LSPs) associated with Ag/SiO 2 NPs.

UR - https://www.scopus.com/pages/publications/84555218502

U2 - 10.1063/1.3671394

DO - 10.1063/1.3671394

M3 - Journal article

AN - SCOPUS:84555218502

SN - 0003-6951

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 25

M1 - 251114

ER -

Quantum efficiency control of InGaN/GaN multi-quantum-well structures using Ag/SiO ₂ core-shell nanoparticles

Abstract

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