High-efficiency, microscale GaN light-emitting diodes and their thermal properties on unusual substrates

Tae Il Kim, Yei Hwan Jung, Jizhou Song, Daegon Kim, Yuhang Li, Hoon Sik Kim, Il Sun Song, Jonathan J. Wierer, Hsuan An Pao, Yonggang Huang, John A. Rogers

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

A method for forming efficient, ultrathin GaN light-emitting diodes (LEDs) and for their assembly onto foreign substances is reported. The LEDs have lateral dimensions ranging from â̂1 mm × 1 mm to â̂25 μm × 25 μm. Quantitative experimental and theoretical studies show the benefits of small device geometry on thermal management, for both continuous and pulsed-mode operation, the latter of which suggests the potential use of these technologies in bio-integrated contexts.

Original languageEnglish
Pages (from-to)1643-1649
Number of pages7
JournalSmall
Volume8
Issue number11
DOIs
StatePublished - Jun 11 2012

Fingerprint

Light emitting diodes
Thermodynamic properties
Hot Temperature
Light
Substrates
Temperature control
Theoretical Models
Technology
Equipment and Supplies
Geometry

Keywords

  • flexible electronics
  • gallium nitride
  • laser lift-off (LLO)
  • light-emitting diodes
  • transfer printing

ASJC Scopus subject areas

  • Biomaterials
  • Engineering (miscellaneous)
  • Biotechnology
  • Medicine(all)

Cite this

Kim, T. I., Jung, Y. H., Song, J., Kim, D., Li, Y., Kim, H. S., ... Rogers, J. A. (2012). High-efficiency, microscale GaN light-emitting diodes and their thermal properties on unusual substrates. Small, 8(11), 1643-1649. https://doi.org/10.1002/smll.201200382

High-efficiency, microscale GaN light-emitting diodes and their thermal properties on unusual substrates. / Kim, Tae Il; Jung, Yei Hwan; Song, Jizhou; Kim, Daegon; Li, Yuhang; Kim, Hoon Sik; Song, Il Sun; Wierer, Jonathan J.; Pao, Hsuan An; Huang, Yonggang; Rogers, John A.

In: Small, Vol. 8, No. 11, 11.06.2012, p. 1643-1649.

Research output: Contribution to journalArticle

Kim, TI, Jung, YH, Song, J, Kim, D, Li, Y, Kim, HS, Song, IS, Wierer, JJ, Pao, HA, Huang, Y & Rogers, JA 2012, 'High-efficiency, microscale GaN light-emitting diodes and their thermal properties on unusual substrates', Small, vol. 8, no. 11, pp. 1643-1649. https://doi.org/10.1002/smll.201200382
Kim, Tae Il ; Jung, Yei Hwan ; Song, Jizhou ; Kim, Daegon ; Li, Yuhang ; Kim, Hoon Sik ; Song, Il Sun ; Wierer, Jonathan J. ; Pao, Hsuan An ; Huang, Yonggang ; Rogers, John A. / High-efficiency, microscale GaN light-emitting diodes and their thermal properties on unusual substrates. In: Small. 2012 ; Vol. 8, No. 11. pp. 1643-1649.
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