Improvements in thermionic cooling through engineering of the heterostructure interface using Monte Carlo simulations

Stephen, A., Dunn, G.M., Oxley, C.H., Glover, J., Montes Bajo, M., Cumming, D.R.S. , Khalid, A. and Kuball, M. (2013) Improvements in thermionic cooling through engineering of the heterostructure interface using Monte Carlo simulations. Journal of Applied Physics, 114(4), 043717. (doi:10.1063/1.4817087)

Stephen, A., Dunn, G.M., Oxley, C.H., Glover, J., Montes Bajo, M., Cumming, D.R.S. , Khalid, A. and Kuball, M. (2013) Improvements in thermionic cooling through engineering of the heterostructure interface using Monte Carlo simulations. Journal of Applied Physics, 114(4), 043717. (doi:10.1063/1.4817087)

Full text not currently available from Enlighten.

Abstract

A self-consistent Ensemble Monte Carlo (EMC) model was developed to simulate the thermionic effect in heterostructure barrier coolers. The model was validated on an InGaAs-InGaAsP heterostructure device of variable barrier height and width, producing good quantitative agreement with previous literature results. The operation of the cooler was found to be a complex and intricate process depending on the field, conduction band and details of barrier structure. When applied to a GaAs-AlGaAs micro-cooler there was good agreement with the experimental results. Importantly, very small alterations in the barrier structure were found to lead to considerable changes in device performance.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Khalid, Dr Ata-ul-Habib
Authors: Stephen, A., Dunn, G.M., Oxley, C.H., Glover, J., Montes Bajo, M., Cumming, D.R.S., Khalid, A., and Kuball, M.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Journal of Applied Physics
Publisher:American Institute of Physics
ISSN:0021-8979
ISSN (Online):1089-7550

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
497131Novel Thermal Management Concepts: High Power High Frequency Planar Gunn DiodeDavid CummingEngineering & Physical Sciences Research Council (EPSRC)EP/H011862/1ENG - ENGINEERING ELECTRONICS & NANO ENG