Spatial distribution of crown shaped light emission from a periodic inverted polygonal deflector embedded in an InGaNGaN light emitting diode

Hyung Gu Kim; Tran Viet Cuong; Hyun Jeong; Seung Hee Woo; Ok Hwan Cha; Eun Kyung Suh; Chang Hee Hong; Hyung Koun Cho; Bo Hyun Kong; Mun Seok Jeong

doi:10.1063/1.2883932

Spatial distribution of crown shaped light emission from a periodic inverted polygonal deflector embedded in an InGaNGaN light emitting diode

Hyung Gu Kim
, Tran Viet Cuong
, Hyun Jeong
, Seung Hee Woo
, Ok Hwan Cha
, Eun Kyung Suh
, Chang Hee Hong
, Hyung Koun Cho
, Bo Hyun Kong
, Mun Seok Jeong

Department of Advanced Materials Science and Engineering

Jeonbuk National University
Sungkyunkwan University
Gwangju Institute of Science and Technology

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

9 Scopus citations

Abstract

We investigated spatial light emission from a periodic inverted polygonal deflector, which included six {10-1-1} facets and six {11-2-2} facets embedded in an InGaNGaN light emitting diode by using confocal scanning electroluminescence microscopy. We found a noticeable crown shape with the contrast of luminescence intensity and wavelength observed on these facets mainly due to the variation of growth rate for the InGaN quantum wells. In addition, a very low intensity and blueshifted emission wavelength on the {11-2-2} facets indicated the deficiency of indium incorporation and/or much thinner well thickness as compared to that of the {10-1-1} facets.

Original language	English
Article number	061118
Journal	Applied Physics Letters
Volume	92
Issue number	6
DOIs	https://doi.org/10.1063/1.2883932
State	Published - 2008

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title = "Spatial distribution of crown shaped light emission from a periodic inverted polygonal deflector embedded in an InGaNGaN light emitting diode",

abstract = "We investigated spatial light emission from a periodic inverted polygonal deflector, which included six \{10-1-1\} facets and six \{11-2-2\} facets embedded in an InGaNGaN light emitting diode by using confocal scanning electroluminescence microscopy. We found a noticeable crown shape with the contrast of luminescence intensity and wavelength observed on these facets mainly due to the variation of growth rate for the InGaN quantum wells. In addition, a very low intensity and blueshifted emission wavelength on the \{11-2-2\} facets indicated the deficiency of indium incorporation and/or much thinner well thickness as compared to that of the \{10-1-1\} facets.",

author = "Kim, \{Hyung Gu\} and Cuong, \{Tran Viet\} and Hyun Jeong and Woo, \{Seung Hee\} and Cha, \{Ok Hwan\} and Suh, \{Eun Kyung\} and Hong, \{Chang Hee\} and Cho, \{Hyung Koun\} and Kong, \{Bo Hyun\} and Jeong, \{Mun Seok\}",

year = "2008",

doi = "10.1063/1.2883932",

language = "English",

volume = "92",

journal = "Applied Physics Letters",

issn = "0003-6951",

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T1 - Spatial distribution of crown shaped light emission from a periodic inverted polygonal deflector embedded in an InGaNGaN light emitting diode

AU - Kim, Hyung Gu

AU - Cuong, Tran Viet

AU - Jeong, Hyun

AU - Woo, Seung Hee

AU - Cha, Ok Hwan

AU - Suh, Eun Kyung

AU - Hong, Chang Hee

AU - Cho, Hyung Koun

AU - Kong, Bo Hyun

AU - Jeong, Mun Seok

PY - 2008

Y1 - 2008

N2 - We investigated spatial light emission from a periodic inverted polygonal deflector, which included six {10-1-1} facets and six {11-2-2} facets embedded in an InGaNGaN light emitting diode by using confocal scanning electroluminescence microscopy. We found a noticeable crown shape with the contrast of luminescence intensity and wavelength observed on these facets mainly due to the variation of growth rate for the InGaN quantum wells. In addition, a very low intensity and blueshifted emission wavelength on the {11-2-2} facets indicated the deficiency of indium incorporation and/or much thinner well thickness as compared to that of the {10-1-1} facets.

AB - We investigated spatial light emission from a periodic inverted polygonal deflector, which included six {10-1-1} facets and six {11-2-2} facets embedded in an InGaNGaN light emitting diode by using confocal scanning electroluminescence microscopy. We found a noticeable crown shape with the contrast of luminescence intensity and wavelength observed on these facets mainly due to the variation of growth rate for the InGaN quantum wells. In addition, a very low intensity and blueshifted emission wavelength on the {11-2-2} facets indicated the deficiency of indium incorporation and/or much thinner well thickness as compared to that of the {10-1-1} facets.

UR - https://www.scopus.com/pages/publications/39349090997

U2 - 10.1063/1.2883932

DO - 10.1063/1.2883932

M3 - Article

AN - SCOPUS:39349090997

SN - 0003-6951

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 061118

ER -

Spatial distribution of crown shaped light emission from a periodic inverted polygonal deflector embedded in an InGaNGaN light emitting diode

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