Enhanced Color-Conversion Efficiency of Hybrid Nanostructured-Cavities InGaN/GaN Light-Emitting Diodes Consisting of Nontoxic InP Quantum Dots

Che Yu Liu; Tzu Pei Chen; Jhih Kai Huang; Tzu Neng Lin; Chia Yen Huang; Xiu Ling Li; Hao Chung Kuo; Ji Lin Shen; Chun Yen Chang

doi:10.1109/JSTQE.2017.2749973

Enhanced Color-Conversion Efficiency of Hybrid Nanostructured-Cavities InGaN/GaN Light-Emitting Diodes Consisting of Nontoxic InP Quantum Dots

Che Yu Liu, Tzu Pei Chen, Jhih Kai Huang, Tzu Neng Lin, Chia Yen Huang, Xiu Ling Li, Hao Chung Kuo, Ji Lin Shen, Chun Yen Chang

Electrical and Computer Engineering

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

Abstract

Color-conversion efficiency enhancement of hybrid light-emitting diodes (LEDs) by cadmium-free colloidal quantum dots (QDs) and a novel selective area nanocavities structure has been demonstrated. Combining nanoimprinting and photolithography techniques, nanocavities array can be fabricated at designated locations on the LEDs. The color-conversion efficiency of selective area nanocavities LED can be enhanced by up to 13%. The significant color-conversion efficiency enhancement is attributed to resonance of InP QDs emission in nanocavities and nonradiative energy transfer from LED active layers to InP QDs, which has been investigated and characterized by finite domain time-domain simulation, electroluminescence, and time-resolved photoluminescence measurements. This hybrid nanostructured device, therefore, exhibits a great potential for the applications of multicolor lighting sources and micro-LED.

Original language	English (US)
Article number	8027032
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	23
Issue number	5
DOIs	https://doi.org/10.1109/JSTQE.2017.2749973
State	Published - Sep 1 2017

Keywords

Light emitting diodes
colloidal quantum dots
energy transfer
nanotechnology
optoelectronic devices

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Online availability

10.1109/JSTQE.2017.2749973

Library availability

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Liu, C. Y., Chen, T. P., Huang, J. K., Lin, T. N., Huang, C. Y., Li, X. L., Kuo, H. C., Shen, J. L., & Chang, C. Y. (2017). Enhanced Color-Conversion Efficiency of Hybrid Nanostructured-Cavities InGaN/GaN Light-Emitting Diodes Consisting of Nontoxic InP Quantum Dots. IEEE Journal of Selected Topics in Quantum Electronics, 23(5), Article 8027032. https://doi.org/10.1109/JSTQE.2017.2749973

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title = "Enhanced Color-Conversion Efficiency of Hybrid Nanostructured-Cavities InGaN/GaN Light-Emitting Diodes Consisting of Nontoxic InP Quantum Dots",

abstract = "Color-conversion efficiency enhancement of hybrid light-emitting diodes (LEDs) by cadmium-free colloidal quantum dots (QDs) and a novel selective area nanocavities structure has been demonstrated. Combining nanoimprinting and photolithography techniques, nanocavities array can be fabricated at designated locations on the LEDs. The color-conversion efficiency of selective area nanocavities LED can be enhanced by up to 13%. The significant color-conversion efficiency enhancement is attributed to resonance of InP QDs emission in nanocavities and nonradiative energy transfer from LED active layers to InP QDs, which has been investigated and characterized by finite domain time-domain simulation, electroluminescence, and time-resolved photoluminescence measurements. This hybrid nanostructured device, therefore, exhibits a great potential for the applications of multicolor lighting sources and micro-LED.",

keywords = "Light emitting diodes, colloidal quantum dots, energy transfer, nanotechnology, optoelectronic devices",

author = "Liu, {Che Yu} and Chen, {Tzu Pei} and Huang, {Jhih Kai} and Lin, {Tzu Neng} and Huang, {Chia Yen} and Li, {Xiu Ling} and Kuo, {Hao Chung} and Shen, {Ji Lin} and Chang, {Chun Yen}",

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year = "2017",

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doi = "10.1109/JSTQE.2017.2749973",

language = "English (US)",

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AU - Liu, Che Yu

AU - Chen, Tzu Pei

AU - Huang, Jhih Kai

AU - Lin, Tzu Neng

AU - Huang, Chia Yen

AU - Li, Xiu Ling

AU - Kuo, Hao Chung

AU - Shen, Ji Lin

AU - Chang, Chun Yen

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Color-conversion efficiency enhancement of hybrid light-emitting diodes (LEDs) by cadmium-free colloidal quantum dots (QDs) and a novel selective area nanocavities structure has been demonstrated. Combining nanoimprinting and photolithography techniques, nanocavities array can be fabricated at designated locations on the LEDs. The color-conversion efficiency of selective area nanocavities LED can be enhanced by up to 13%. The significant color-conversion efficiency enhancement is attributed to resonance of InP QDs emission in nanocavities and nonradiative energy transfer from LED active layers to InP QDs, which has been investigated and characterized by finite domain time-domain simulation, electroluminescence, and time-resolved photoluminescence measurements. This hybrid nanostructured device, therefore, exhibits a great potential for the applications of multicolor lighting sources and micro-LED.

AB - Color-conversion efficiency enhancement of hybrid light-emitting diodes (LEDs) by cadmium-free colloidal quantum dots (QDs) and a novel selective area nanocavities structure has been demonstrated. Combining nanoimprinting and photolithography techniques, nanocavities array can be fabricated at designated locations on the LEDs. The color-conversion efficiency of selective area nanocavities LED can be enhanced by up to 13%. The significant color-conversion efficiency enhancement is attributed to resonance of InP QDs emission in nanocavities and nonradiative energy transfer from LED active layers to InP QDs, which has been investigated and characterized by finite domain time-domain simulation, electroluminescence, and time-resolved photoluminescence measurements. This hybrid nanostructured device, therefore, exhibits a great potential for the applications of multicolor lighting sources and micro-LED.

KW - Light emitting diodes

KW - colloidal quantum dots

KW - energy transfer

KW - nanotechnology

KW - optoelectronic devices

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Enhanced Color-Conversion Efficiency of Hybrid Nanostructured-Cavities InGaN/GaN Light-Emitting Diodes Consisting of Nontoxic InP Quantum Dots

Abstract

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