Zinc sulphide overlayer two-dimensional photonic crystal for enhanced extraction of light from a micro cavity light-emitting diode

Michael A. Mastro; Chul Soo Kim; Mijin Kim; Josh CalDWell; Ron T. Holm; Igor VUrgaftman; Jihyun Kim; Charles R. Eddy; Jerry R. Meyer

doi:10.1143/JJAP.47.7827

Zinc sulphide overlayer two-dimensional photonic crystal for enhanced extraction of light from a micro cavity light-emitting diode

Michael A. Mastro, Chul Soo Kim, Mijin Kim, Josh CalDWell, Ron T. Holm, Igor VUrgaftman, Jihyun Kim, Charles R. Eddy, Jerry R. Meyer

Department of Chemical and Biological Engineering

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

10 Citations (Scopus)

Abstract

A two-dimensional (2D) ZnS photonic crystal was deposited on the surface of a one-dimensional (1D) III-nitride micro cavity light-emitting diode (LED), to intermix the light extraction features of both structures (1D+2D). The deposition of an ideal micro-cavity optical thickness of ≈λ/2 is impractical for III-nitride LEDs, and in realistic multi-mode devices a large fraction of the light is lost to internal refraction as guided light. Therefore, a 2D photonic crystal on the surface of the LED was used to diffract and thus redirect this guided light out of the semiconductor over several hundred microns. Additionally, the employment of a post-epitaxy ZnS 2D photonic crystal avoided the typical etching into the GaN:Mg contact layer, a procedure which can cause damage to the near surface.

Original language	English
Pages (from-to)	7827-7830
Number of pages	4
Journal	Japanese journal of applied physics
Volume	47
Issue number	10 PART 1
DOIs	https://doi.org/10.1143/JJAP.47.7827
Publication status	Published - 2008 Oct

Keywords

GaN
Micro cavity light-emitting diode
Photonic crystal

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.47.7827

Cite this

@article{57399031b9834581978624010fe9d0bd,

title = "Zinc sulphide overlayer two-dimensional photonic crystal for enhanced extraction of light from a micro cavity light-emitting diode",

abstract = "A two-dimensional (2D) ZnS photonic crystal was deposited on the surface of a one-dimensional (1D) III-nitride micro cavity light-emitting diode (LED), to intermix the light extraction features of both structures (1D+2D). The deposition of an ideal micro-cavity optical thickness of ≈λ/2 is impractical for III-nitride LEDs, and in realistic multi-mode devices a large fraction of the light is lost to internal refraction as guided light. Therefore, a 2D photonic crystal on the surface of the LED was used to diffract and thus redirect this guided light out of the semiconductor over several hundred microns. Additionally, the employment of a post-epitaxy ZnS 2D photonic crystal avoided the typical etching into the GaN:Mg contact layer, a procedure which can cause damage to the near surface.",

keywords = "GaN, Micro cavity light-emitting diode, Photonic crystal",

author = "Mastro, {Michael A.} and Kim, {Chul Soo} and Mijin Kim and Josh CalDWell and Holm, {Ron T.} and Igor VUrgaftman and Jihyun Kim and Eddy, {Charles R.} and Meyer, {Jerry R.}",

year = "2008",

month = oct,

doi = "10.1143/JJAP.47.7827",

language = "English",

volume = "47",

pages = "7827--7830",

journal = "Japanese journal of applied physics",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "10 PART 1",

}

TY - JOUR

T1 - Zinc sulphide overlayer two-dimensional photonic crystal for enhanced extraction of light from a micro cavity light-emitting diode

AU - Mastro, Michael A.

AU - Kim, Chul Soo

AU - Kim, Mijin

AU - CalDWell, Josh

AU - Holm, Ron T.

AU - VUrgaftman, Igor

AU - Kim, Jihyun

AU - Eddy, Charles R.

AU - Meyer, Jerry R.

PY - 2008/10

Y1 - 2008/10

N2 - A two-dimensional (2D) ZnS photonic crystal was deposited on the surface of a one-dimensional (1D) III-nitride micro cavity light-emitting diode (LED), to intermix the light extraction features of both structures (1D+2D). The deposition of an ideal micro-cavity optical thickness of ≈λ/2 is impractical for III-nitride LEDs, and in realistic multi-mode devices a large fraction of the light is lost to internal refraction as guided light. Therefore, a 2D photonic crystal on the surface of the LED was used to diffract and thus redirect this guided light out of the semiconductor over several hundred microns. Additionally, the employment of a post-epitaxy ZnS 2D photonic crystal avoided the typical etching into the GaN:Mg contact layer, a procedure which can cause damage to the near surface.

AB - A two-dimensional (2D) ZnS photonic crystal was deposited on the surface of a one-dimensional (1D) III-nitride micro cavity light-emitting diode (LED), to intermix the light extraction features of both structures (1D+2D). The deposition of an ideal micro-cavity optical thickness of ≈λ/2 is impractical for III-nitride LEDs, and in realistic multi-mode devices a large fraction of the light is lost to internal refraction as guided light. Therefore, a 2D photonic crystal on the surface of the LED was used to diffract and thus redirect this guided light out of the semiconductor over several hundred microns. Additionally, the employment of a post-epitaxy ZnS 2D photonic crystal avoided the typical etching into the GaN:Mg contact layer, a procedure which can cause damage to the near surface.

KW - GaN

KW - Micro cavity light-emitting diode

KW - Photonic crystal

UR - http://www.scopus.com/inward/record.url?scp=59149099290&partnerID=8YFLogxK

U2 - 10.1143/JJAP.47.7827

DO - 10.1143/JJAP.47.7827

M3 - Article

AN - SCOPUS:59149099290

SN - 0021-4922

VL - 47

SP - 7827

EP - 7830

JO - Japanese journal of applied physics

JF - Japanese journal of applied physics

IS - 10 PART 1

ER -

Zinc sulphide overlayer two-dimensional photonic crystal for enhanced extraction of light from a micro cavity light-emitting diode

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this