A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate

Chang Jiang Chen; Wenbin Zhu; Ju Hung Chao; Haonan Zhou; Shizhuo Yin

doi:10.1117/12.2276512

A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate

Chang Jiang Chen, Wenbin Zhu, Ju Hung Chao, Haonan Zhou, Shizhuo Yin

Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper presents a quantitative two-dimensional (2D) analysis on high power GaN light emitting diodes (LEDs) fabricated on asymmetric micro-structured substrates. It is found that the light extraction efficiency (LEE) can be substantially improved from conventional symmetric structure to asymmetric structure. The increase of LEE is mainly dedicated to the increased surface area and better randomization on the direction of transmitted/reflected light, which enhances the escaping probability after multiple reflections. This quantitative 2D analysis lays down a solid foundation for the future quantitative 3D analysis.

Original language	English (US)
Title of host publication	Photonic Fiber and Crystal Devices
Subtitle of host publication	Advances in Materials and Innovations in Device Applications XI
Editors	Shizhuo Yin, Ruyan Guo
Publisher	SPIE
Volume	10382
ISBN (Electronic)	9781510612211
DOIs	https://doi.org/10.1117/12.2276512
State	Published - Jan 1 2017
Event	Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017 - San Diego, United States Duration: Aug 6 2017 → Aug 7 2017

Other

Other	Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017
Country/Territory	United States
City	San Diego
Period	8/6/17 → 8/7/17

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2276512

Cite this

Chen, C. J., Zhu, W., Chao, J. H., Zhou, H., & Yin, S. (2017). A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate. In S. Yin, & R. Guo (Eds.), Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI (Vol. 10382). [103820F] SPIE. https://doi.org/10.1117/12.2276512

@inproceedings{4798b3f948f342e09793e381f1ee91b9,

title = "A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate",

abstract = "This paper presents a quantitative two-dimensional (2D) analysis on high power GaN light emitting diodes (LEDs) fabricated on asymmetric micro-structured substrates. It is found that the light extraction efficiency (LEE) can be substantially improved from conventional symmetric structure to asymmetric structure. The increase of LEE is mainly dedicated to the increased surface area and better randomization on the direction of transmitted/reflected light, which enhances the escaping probability after multiple reflections. This quantitative 2D analysis lays down a solid foundation for the future quantitative 3D analysis.",

author = "Chen, {Chang Jiang} and Wenbin Zhu and Chao, {Ju Hung} and Haonan Zhou and Shizhuo Yin",

year = "2017",

month = jan,

day = "1",

doi = "10.1117/12.2276512",

language = "English (US)",

volume = "10382",

editor = "Shizhuo Yin and Ruyan Guo",

booktitle = "Photonic Fiber and Crystal Devices",

publisher = "SPIE",

address = "United States",

note = "Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017 ; Conference date: 06-08-2017 Through 07-08-2017",

}

Chen, CJ, Zhu, W, Chao, JH, Zhou, H & Yin, S 2017, A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate. in S Yin & R Guo (eds), Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI. vol. 10382, 103820F, SPIE, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017, San Diego, United States, 8/6/17. https://doi.org/10.1117/12.2276512

A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate. / Chen, Chang Jiang; Zhu, Wenbin; Chao, Ju Hung et al.
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI. ed. / Shizhuo Yin; Ruyan Guo. Vol. 10382 SPIE, 2017. 103820F.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate

AU - Chen, Chang Jiang

AU - Zhu, Wenbin

AU - Chao, Ju Hung

AU - Zhou, Haonan

AU - Yin, Shizhuo

PY - 2017/1/1

Y1 - 2017/1/1

N2 - This paper presents a quantitative two-dimensional (2D) analysis on high power GaN light emitting diodes (LEDs) fabricated on asymmetric micro-structured substrates. It is found that the light extraction efficiency (LEE) can be substantially improved from conventional symmetric structure to asymmetric structure. The increase of LEE is mainly dedicated to the increased surface area and better randomization on the direction of transmitted/reflected light, which enhances the escaping probability after multiple reflections. This quantitative 2D analysis lays down a solid foundation for the future quantitative 3D analysis.

AB - This paper presents a quantitative two-dimensional (2D) analysis on high power GaN light emitting diodes (LEDs) fabricated on asymmetric micro-structured substrates. It is found that the light extraction efficiency (LEE) can be substantially improved from conventional symmetric structure to asymmetric structure. The increase of LEE is mainly dedicated to the increased surface area and better randomization on the direction of transmitted/reflected light, which enhances the escaping probability after multiple reflections. This quantitative 2D analysis lays down a solid foundation for the future quantitative 3D analysis.

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U2 - 10.1117/12.2276512

DO - 10.1117/12.2276512

M3 - Conference contribution

AN - SCOPUS:85034068805

VL - 10382

BT - Photonic Fiber and Crystal Devices

A2 - Yin, Shizhuo

A2 - Guo, Ruyan

PB - SPIE

T2 - Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017

Y2 - 6 August 2017 through 7 August 2017

ER -

A two-dimensional analysis on high light extraction efficiency (LEE) LEDs with asymmetric micro-structured substrate

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