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)
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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 |
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