Thermal analysis of injectable, cellular-scale optoelectronics with pulsed power

Yuhang Li, Xiaoting Shi, Jizhou Song, Chaofeng Lü, Tae Il Kim, Jordan G. McCall, Michael R. Bruchas, John A. Rogers, Yonggang Huang*

*Corresponding author for this work

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

An ability to insert electronic/optoelectronic systems into precise locations of biological tissues provides powerful capabilities, especially in neuroscience such as optogenetics where light can activate/deactivate critical cellular signalling and neural systems. In such cases, engineered thermal management is essential, to avoid adverse effects of heating on normal biological processes. Here, an analytic model of heat conduction is developed for microscale, inorganic light-emitting diodes (μ-ILEDs) in a pulsed operation in biological tissues. The analytic solutions agree well with both three-dimensional finite-element analysis and experiments. A simple scaling law for the maximum temperature increase is presented in terms of material (e.g. thermal diffusivity), geometric (e.g. μ-ILED size) and loading parameters (e.g. pulsed peak power, duty cycle and frequency). These results provide useful design guidelines not only for injectable μ-ILED systems, but also for other similar classes of electronic and optoelectronic components.

Original languageEnglish (US)
Article number0142
JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume469
Issue number2156
DOIs
StatePublished - Aug 8 2013

Fingerprint

Thermal Analysis
Optoelectronics
Optoelectronic devices
Thermoanalysis
thermal analysis
Biological Tissue
Tissue
Cell signaling
neurology
Scaling laws
Thermal diffusivity
thermal diffusivity
inserts
electronics
Heat conduction
Temperature control
conductive heat transfer
Electronics
microbalances
scaling laws

Keywords

  • Light-emitting diode
  • Optoelectronics
  • Scaling law
  • Thermal analysis

ASJC Scopus subject areas

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

Cite this

Li, Yuhang ; Shi, Xiaoting ; Song, Jizhou ; Lü, Chaofeng ; Kim, Tae Il ; McCall, Jordan G. ; Bruchas, Michael R. ; Rogers, John A. ; Huang, Yonggang. / Thermal analysis of injectable, cellular-scale optoelectronics with pulsed power. In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2013 ; Vol. 469, No. 2156.
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Thermal analysis of injectable, cellular-scale optoelectronics with pulsed power. / Li, Yuhang; Shi, Xiaoting; Song, Jizhou; Lü, Chaofeng; Kim, Tae Il; McCall, Jordan G.; Bruchas, Michael R.; Rogers, John A.; Huang, Yonggang.

In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 469, No. 2156, 0142, 08.08.2013.

Research output: Contribution to journalArticle

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AU - Song, Jizhou

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AU - McCall, Jordan G.

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AU - Rogers, John A.

AU - Huang, Yonggang

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