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Title: Micro-cooler enhancements by barrier interface analysis

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.
Authors:
;  [1] ; ;  [2] ; ;  [3] ; ;  [4]
  1. Department of Physics, University of Aberdeen, King's College, AB24 3UE Aberdeen (United Kingdom)
  2. Department of Engineering, De Montfort University, Gateway, LE1 9BH Leicester (United Kingdom)
  3. Center for Device Thermography and Reliability, H. H. Wills Physics Laboratory, University of Bristol, BS8 1TL Bristol (United Kingdom)
  4. School of Engineering, University of Glasgow, Rankine Building, G12 8LT Glasgow (United Kingdom)
Publication Date:
OSTI Identifier:
22251563
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 2; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHARGE DISTRIBUTION; GALLIUM ARSENIDES; MONTE CARLO METHOD; SIMULATION