A thermal analysis of the operation of microscale, inorganic light-emitting diodes

Chaofeng Lu, Yuhang Li, Jizhou Song, Hoon Sik Kim, Eric Brueckner, Bo Fang, Keh Chih Hwang, Yonggang Huang, Ralph G. Nuzzo, John A. Rogers

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

An analytical model is developed to study the thermal properties of microscale, inorganic light-emitting diodes (μ-ILEDs) with ultra-thin geometries and layouts. The predicted surface and μ-ILED temperatures agree well with experiments and finite-element simulations. A simple scaling law is obtained for the normalized μ-ILED temperature versus the normalized μ-ILED size. This study provides a theory to guide the design of layouts that minimize adverse thermal effects on the performance of μ-ILEDs not only for solid-state lighting but also for applications integrating μ-ILED devices on complex/soft substrate as are currently of interest in optogenetics and other emerging areas in biology.

Original languageEnglish
Pages (from-to)3215-3223
Number of pages9
JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume468
Issue number2146
DOIs
StatePublished - Oct 8 2012

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Thermal Analysis
Diode
microbalances
layouts
Thermoanalysis
Light emitting diodes
Layout
thermal analysis
light emitting diodes
Solid-state Lighting
Thermal Effects
Scaling laws
Thermal Properties
Finite Element Simulation
Scaling Laws
biology
illuminating
Thermal effects
scaling laws
Analytical Model

Keywords

  • Gallium nitride
  • Solid-state lighting
  • Thermal analysis

ASJC Scopus subject areas

  • Mathematics(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

A thermal analysis of the operation of microscale, inorganic light-emitting diodes. / Lu, Chaofeng; Li, Yuhang; Song, Jizhou; Kim, Hoon Sik; Brueckner, Eric; Fang, Bo; Hwang, Keh Chih; Huang, Yonggang; Nuzzo, Ralph G.; Rogers, John A.

In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 468, No. 2146, 08.10.2012, p. 3215-3223.

Research output: Contribution to journalArticle

Lu, C, Li, Y, Song, J, Kim, HS, Brueckner, E, Fang, B, Hwang, KC, Huang, Y, Nuzzo, RG & Rogers, JA 2012, 'A thermal analysis of the operation of microscale, inorganic light-emitting diodes', Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 468, no. 2146, pp. 3215-3223. https://doi.org/10.1098/rspa.2012.0225
Lu, Chaofeng ; Li, Yuhang ; Song, Jizhou ; Kim, Hoon Sik ; Brueckner, Eric ; Fang, Bo ; Hwang, Keh Chih ; Huang, Yonggang ; Nuzzo, Ralph G. ; Rogers, John A. / A thermal analysis of the operation of microscale, inorganic light-emitting diodes. In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2012 ; Vol. 468, No. 2146. pp. 3215-3223.
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