Facile fabrication of free-standing light emitting diode by combination of wet chemical etchings

Lee Woon Jang, Dae Woo Jeon, Tae Hoon Chung, Alexander Y. Polyakov, Han Su Cho, Jin Hyeon Yun, Jin Woo Ju, Jong Hyeob Baek, Joo Won Choi, In-Hwan Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Free-standing GaN light-emitting diode (LED) structure with high crystalline quality was fabricated by combining electrochemical and photoelectrochemical etching followed by regrowth of LED structure and subsequent mechanical detachment from a substrate. The structural quality and composition of the regrown LED film thus produced was similar to standard LED, but the photoluminescence and electroluminescence intensity of the LED structures on the etched template were several times higher than for standard LED. The performance enhancement was attributable to additional light scattering and improved crystalline quality as a result of the combined etching scheme.

Original languageEnglish
Pages (from-to)985-989
Number of pages5
JournalACS Applied Materials and Interfaces
Volume6
Issue number2
DOIs
Publication statusPublished - 2014 Jan 22
Externally publishedYes

Fingerprint

Wet etching
Light emitting diodes
Fabrication
Etching
Crystalline materials
Electroluminescence
Light scattering
Photoluminescence
Substrates
Chemical analysis

Keywords

  • EC-PEC
  • GaN LED
  • lift-off
  • nanostructure

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Facile fabrication of free-standing light emitting diode by combination of wet chemical etchings. / Jang, Lee Woon; Jeon, Dae Woo; Chung, Tae Hoon; Polyakov, Alexander Y.; Cho, Han Su; Yun, Jin Hyeon; Ju, Jin Woo; Baek, Jong Hyeob; Choi, Joo Won; Lee, In-Hwan.

In: ACS Applied Materials and Interfaces, Vol. 6, No. 2, 22.01.2014, p. 985-989.

Research output: Contribution to journalArticle

Jang, LW, Jeon, DW, Chung, TH, Polyakov, AY, Cho, HS, Yun, JH, Ju, JW, Baek, JH, Choi, JW & Lee, I-H 2014, 'Facile fabrication of free-standing light emitting diode by combination of wet chemical etchings', ACS Applied Materials and Interfaces, vol. 6, no. 2, pp. 985-989. https://doi.org/10.1021/am404285s
Jang, Lee Woon ; Jeon, Dae Woo ; Chung, Tae Hoon ; Polyakov, Alexander Y. ; Cho, Han Su ; Yun, Jin Hyeon ; Ju, Jin Woo ; Baek, Jong Hyeob ; Choi, Joo Won ; Lee, In-Hwan. / Facile fabrication of free-standing light emitting diode by combination of wet chemical etchings. In: ACS Applied Materials and Interfaces. 2014 ; Vol. 6, No. 2. pp. 985-989.
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