Samarelli, A. et al. (2014) Prospects for SiGe thermoelectric generators. Solid-State Electronics, 98, 70 - 74. (doi: 10.1016/j.sse.2014.04.003)
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Abstract
Thermoelectric materials are one potential technology that could be used for energy harvesting. Here we report results from nanoscale Ge/SiGe heterostructure materials grown on Si substrates designed to enhance the thermoelectric performance over bulk materials at room temperature. The materials and devices are aimed at integrated energy harvesters for autonomous sensing applications. We report Seebeck coefficients up to 279.5 ± 1.2 μV/K at room temperature with electrical conductivities of 77,200 S/m which produce a high power factor of 6.02 ± 0.05 mW m−1 K−2 and a ZT of 0.135 ± 0.074 at room temperature. Methods for microfabricating modules will be described along with the first demonstration of power output from flip-chip bonded SiGe legs.
| Item Type: | Articles |
|---|---|
| Additional Information: | Selected Papers from {ULIS} 2013 Conference |
| Keywords: | Silicon germanium, thermoelectrics, superlattices |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Weaver, Professor Jonathan and Ferre Llin, Dr Lourdes and Dobson, Dr Phil and Zhang, Dr Yuan and Samarelli, Mr Antonio and Paul, Professor Douglas |
| Authors: | Samarelli, A., Ferre Llin, L., Cecchi, S., Frigerio, J., Chrastina, D., Isella, G., Müller, E., Etzelstorfer, T., Stangl, J., Zhang, Y., Weaver, J.M.R., Dobson, P.S., and Paul, D.J. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Research Group: | Semiconductor Devices |
| Journal Name: | Solid-State Electronics |
| Publisher: | Elsevier |
| ISSN: | 0038-1101 |
| ISSN (Online): | 1879-2405 |
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