Energy coupling processes in InGaN/GaN nanopillar light emitting diodes embedded with Ag and Ag/SiO 2 nanoparticles

Lee Woon Jang; Dae Woo Jeon; Trilochan Sahoo; Alexander Y. Polyakov; Balasubramaniam Saravanakumar; Yeon Tae Yu; Yong Hoon Cho; Jin Kyu Yang; In Hwan Lee

doi:10.1039/c2jm33759b

Energy coupling processes in InGaN/GaN nanopillar light emitting diodes embedded with Ag and Ag/SiO ₂ nanoparticles

Lee Woon Jang, Dae Woo Jeon, Trilochan Sahoo, Alexander Y. Polyakov, Balasubramaniam Saravanakumar, Yeon Tae Yu, Yong Hoon Cho, Jin Kyu Yang, In Hwan Lee

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

22 Citations (Scopus)

Abstract

We synthesized Ag and Ag/SiO ₂ nanoparticles (NPs) and investigated the energy coupling processes between the localized surface plasmons of NPs and the active quantum well regions of nanopillar light-emitting diodes (LEDs). Nanopillar LEDs embedded with Ag NPs exhibited a decreased photoluminescence (PL) intensity, while the PL was markedly enhanced for Ag/SiO ₂ NP embedded nanopillar LEDs. Though the PL decay times decreased in both cases compared to the sample without NPs, the difference in observed optical behavior suggests that different types of energy coupling (EC) are involved.

Original language	English
Pages (from-to)	21749-21753
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	22
Issue number	40
DOIs	https://doi.org/10.1039/c2jm33759b
Publication status	Published - 2012 Oct 28
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Chemistry

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Energy coupling processes in InGaN/GaN nanopillar light emitting diodes embedded with Ag and Ag/SiO ₂ nanoparticles. / Jang, Lee Woon; Jeon, Dae Woo; Sahoo, Trilochan; Polyakov, Alexander Y.; Saravanakumar, Balasubramaniam; Yu, Yeon Tae; Cho, Yong Hoon; Yang, Jin Kyu; Lee, In Hwan.

In: Journal of Materials Chemistry, Vol. 22, No. 40, 28.10.2012, p. 21749-21753.

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

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abstract = "We synthesized Ag and Ag/SiO 2 nanoparticles (NPs) and investigated the energy coupling processes between the localized surface plasmons of NPs and the active quantum well regions of nanopillar light-emitting diodes (LEDs). Nanopillar LEDs embedded with Ag NPs exhibited a decreased photoluminescence (PL) intensity, while the PL was markedly enhanced for Ag/SiO 2 NP embedded nanopillar LEDs. Though the PL decay times decreased in both cases compared to the sample without NPs, the difference in observed optical behavior suggests that different types of energy coupling (EC) are involved.",

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AU - Jang, Lee Woon

AU - Jeon, Dae Woo

AU - Sahoo, Trilochan

AU - Polyakov, Alexander Y.

AU - Saravanakumar, Balasubramaniam

AU - Yu, Yeon Tae

AU - Cho, Yong Hoon

AU - Yang, Jin Kyu

AU - Lee, In Hwan

PY - 2012/10/28

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AB - We synthesized Ag and Ag/SiO 2 nanoparticles (NPs) and investigated the energy coupling processes between the localized surface plasmons of NPs and the active quantum well regions of nanopillar light-emitting diodes (LEDs). Nanopillar LEDs embedded with Ag NPs exhibited a decreased photoluminescence (PL) intensity, while the PL was markedly enhanced for Ag/SiO 2 NP embedded nanopillar LEDs. Though the PL decay times decreased in both cases compared to the sample without NPs, the difference in observed optical behavior suggests that different types of energy coupling (EC) are involved.

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