Description
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 theory to guide the design of layouts that minimize adverse thermal effects not only on the performance of μ-ILEDs 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.
Recommended Citation
Song, J. (2014). Thermal analysis of the operation of microscale inorganic light emitting diodes. In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014 , West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. https://docs.lib.purdue.edu/ses2014/honors/eringen/8
Thermal analysis of the operation of microscale inorganic light emitting diodes
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 theory to guide the design of layouts that minimize adverse thermal effects not only on the performance of μ-ILEDs 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.