Delayed <1 1 1> texture for improving the thermal stability of Ag reflectors for high-performance GaN-based light-emitting diodes

Jun Suk Sung; Jaecheon Han; Do Young Noh; Tae Yeon Seong

doi:10.1016/j.scriptamat.2014.01.037

Delayed <1 1 1> texture for improving the thermal stability of Ag reflectors for high-performance GaN-based light-emitting diodes

Jun Suk Sung, Jaecheon Han, Do Young Noh, Tae Yeon Seong

Department of Materials Science and Engineering

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

9 Citations (Scopus)

Abstract

The thermal stability of Ag-based reflectors for GaN-based light-emitting diodes (LEDs) was significantly improved by inserting an Mg layer. LEDs fabricated with the Mg-inserted reflector exhibited 22% higher output power (at 20 mA) than LEDs with the Ag-only reflector. The Mg-inserted Ag sample was less <1 1 1> textured than the Ag-only sample. Based on scanning electron microscopy and X-ray results, the improved stability is attributed to the delay in the <1 1 1> texturing and the modification of the surface energy of Ag films.

Original language	English
Pages (from-to)	5-8
Number of pages	4
Journal	Scripta Materialia
Volume	80
DOIs	https://doi.org/10.1016/j.scriptamat.2014.01.037
Publication status	Published - 2014 Jun

Keywords

Annealing
Metallizations
Semiconductor compounds
Texture
X-ray diffraction (XRD)

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2014.01.037

Cite this

@article{65bb7b9f909d4273ae1b66cdb8041ff8,

title = "Delayed <1 1 1> texture for improving the thermal stability of Ag reflectors for high-performance GaN-based light-emitting diodes",

abstract = "The thermal stability of Ag-based reflectors for GaN-based light-emitting diodes (LEDs) was significantly improved by inserting an Mg layer. LEDs fabricated with the Mg-inserted reflector exhibited 22% higher output power (at 20 mA) than LEDs with the Ag-only reflector. The Mg-inserted Ag sample was less <1 1 1> textured than the Ag-only sample. Based on scanning electron microscopy and X-ray results, the improved stability is attributed to the delay in the <1 1 1> texturing and the modification of the surface energy of Ag films.",

keywords = "Annealing, Metallizations, Semiconductor compounds, Texture, X-ray diffraction (XRD)",

author = "Sung, {Jun Suk} and Jaecheon Han and Noh, {Do Young} and Seong, {Tae Yeon}",

note = "Funding Information: This work was supported by the industrial technology development program funded by the Ministry of Knowledge Economy (MKE), Korea and the industrial strategic technology development program, 10041878 , Development of WPE 75% LED device process and standard evaluation technology funded by the MKE, Korea.",

year = "2014",

month = jun,

doi = "10.1016/j.scriptamat.2014.01.037",

language = "English",

volume = "80",

pages = "5--8",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Delayed <1 1 1> texture for improving the thermal stability of Ag reflectors for high-performance GaN-based light-emitting diodes

AU - Sung, Jun Suk

AU - Han, Jaecheon

AU - Noh, Do Young

AU - Seong, Tae Yeon

N1 - Funding Information: This work was supported by the industrial technology development program funded by the Ministry of Knowledge Economy (MKE), Korea and the industrial strategic technology development program, 10041878 , Development of WPE 75% LED device process and standard evaluation technology funded by the MKE, Korea.

PY - 2014/6

Y1 - 2014/6

N2 - The thermal stability of Ag-based reflectors for GaN-based light-emitting diodes (LEDs) was significantly improved by inserting an Mg layer. LEDs fabricated with the Mg-inserted reflector exhibited 22% higher output power (at 20 mA) than LEDs with the Ag-only reflector. The Mg-inserted Ag sample was less <1 1 1> textured than the Ag-only sample. Based on scanning electron microscopy and X-ray results, the improved stability is attributed to the delay in the <1 1 1> texturing and the modification of the surface energy of Ag films.

AB - The thermal stability of Ag-based reflectors for GaN-based light-emitting diodes (LEDs) was significantly improved by inserting an Mg layer. LEDs fabricated with the Mg-inserted reflector exhibited 22% higher output power (at 20 mA) than LEDs with the Ag-only reflector. The Mg-inserted Ag sample was less <1 1 1> textured than the Ag-only sample. Based on scanning electron microscopy and X-ray results, the improved stability is attributed to the delay in the <1 1 1> texturing and the modification of the surface energy of Ag films.

KW - Annealing

KW - Metallizations

KW - Semiconductor compounds

KW - Texture

KW - X-ray diffraction (XRD)

UR - http://www.scopus.com/inward/record.url?scp=84897912298&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2014.01.037

DO - 10.1016/j.scriptamat.2014.01.037

M3 - Article

AN - SCOPUS:84897912298

SN - 1359-6462

VL - 80

SP - 5

EP - 8

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Delayed <1 1 1> texture for improving the thermal stability of Ag reflectors for high-performance GaN-based light-emitting diodes

Abstract

Keywords

ASJC Scopus subject areas

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