Micro-cooler Enhancements by Barrier Interface Analysis

A. Stephen, G. M. Dunn, J. Glover, C. H. Oxley, M. Montes Bajo, D. R. S. Cumming, A. Khalid, M. Kuball

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Abstract

A novel gallium arsenide (GaAs) based micro-cooler design, previously analysed both experimentally and by an analytical Heat Transfer (HT) model, has been simulated using a self-consistent Ensemble Monte Carlo (EMC) model for a more in depth analysis of the thermionic cooling in the device. The best fit to the experimental data was found and was used in conjunction with the HT model to estimate the cooler-contact resistance. The cooling results from EMC indicated that the cooling power of the device is highly dependent on the charge distribution across the leading interface. Alteration of this charge distribution via interface extensions on the nanometre scale has shown to produce significant changes in cooler performance.
Original languageEnglish
Article number027105
JournalAIP Advances
Volume4
Issue number2
Early online date5 Feb 2014
DOIs
Publication statusPublished - Feb 2014

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