The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays

InGaN/GaN nanorod light-emitting diode (LED) arrays were fabricated using nanoimprint and reactive ion etching. The diameters of the nanorods range from 120 to 300 nm. The integral photoluminescence (PL) intensity for 120 nm nanorod LED array is enhanced as 13 times compared to that of the planar on...

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Main Authors:	Jiao, Qianqian, Chen, Zhizhong, Feng, Yulong, Li, Shunfeng, Jiang, Shengxiang, Li, Junze, Chen, Yifan, Yu, Tongjun, Kang, Xiangning, Shen, Bo, Zhang, Guoyi
Format:	Online
Language:	English
Published:	Springer US 2016
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4954795/

id	pubmed-4954795
recordtype	oai_dc
spelling	pubmed-49547952016-07-26 The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays Jiao, Qianqian Chen, Zhizhong Feng, Yulong Li, Shunfeng Jiang, Shengxiang Li, Junze Chen, Yifan Yu, Tongjun Kang, Xiangning Shen, Bo Zhang, Guoyi Nano Express InGaN/GaN nanorod light-emitting diode (LED) arrays were fabricated using nanoimprint and reactive ion etching. The diameters of the nanorods range from 120 to 300 nm. The integral photoluminescence (PL) intensity for 120 nm nanorod LED array is enhanced as 13 times compared to that of the planar one. In angular-resolved PL (ARPL) measurements, there are some strong lobes as resonant regime appeared in the far-field radiation patterns of small size nanorod array, in which the PL spectra are sharp and intense. The PL lifetime for resonant regime is 0.088 ns, which is 40 % lower than that of non-resonant regime for 120 nm nanorod LED array. At last, three dimension finite difference time domain (FDTD) simulation is performed. The effects of guided modes coupling in nanocavity and extraction by photonic crystals are explored. Springer US 2016-07-20 /pmc/articles/PMC4954795/ /pubmed/27440081 http://dx.doi.org/10.1186/s11671-016-1548-9 Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Jiao, Qianqian Chen, Zhizhong Feng, Yulong Li, Shunfeng Jiang, Shengxiang Li, Junze Chen, Yifan Yu, Tongjun Kang, Xiangning Shen, Bo Zhang, Guoyi
spellingShingle	Jiao, Qianqian Chen, Zhizhong Feng, Yulong Li, Shunfeng Jiang, Shengxiang Li, Junze Chen, Yifan Yu, Tongjun Kang, Xiangning Shen, Bo Zhang, Guoyi The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays
author_facet	Jiao, Qianqian Chen, Zhizhong Feng, Yulong Li, Shunfeng Jiang, Shengxiang Li, Junze Chen, Yifan Yu, Tongjun Kang, Xiangning Shen, Bo Zhang, Guoyi
author_sort	Jiao, Qianqian
title	The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays
title_short	The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays
title_full	The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays
title_fullStr	The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays
title_full_unstemmed	The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays
title_sort	effects of nanocavity and photonic crystal in ingan/gan nanorod led arrays
description	InGaN/GaN nanorod light-emitting diode (LED) arrays were fabricated using nanoimprint and reactive ion etching. The diameters of the nanorods range from 120 to 300 nm. The integral photoluminescence (PL) intensity for 120 nm nanorod LED array is enhanced as 13 times compared to that of the planar one. In angular-resolved PL (ARPL) measurements, there are some strong lobes as resonant regime appeared in the far-field radiation patterns of small size nanorod array, in which the PL spectra are sharp and intense. The PL lifetime for resonant regime is 0.088 ns, which is 40 % lower than that of non-resonant regime for 120 nm nanorod LED array. At last, three dimension finite difference time domain (FDTD) simulation is performed. The effects of guided modes coupling in nanocavity and extraction by photonic crystals are explored.
publisher	Springer US
publishDate	2016
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4954795/
_version_	1613612485623939072

The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays

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