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Proceedings Paper

Thermal to electrical energy converter based on black Si
Author(s): Yoshiaki Nishijima; A. Balčytis; R. Komatsu; T. Yamamura; G. Seniutinas; Basil T. Wong; S. Juodkazis
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Paper Abstract

Photo-thermal - to - electrical converter is demonstrated by using a commercial Peltier Bi-Te element with a hot contact made out of nanotextured Si (black-Si). Black-Si with colloidal Au nanoparticles is shown to further increase the efficiency of thermal-to-electrical conversion. Peculiarities of heat harvesting using black-Si with plasmonic Au nanoparticles at different gold densities are analyzed. Solar radiation absorption and electric field enhancement in plain and Au nanoparticle decorated black-Si was simulated using finite difference time domain (FDTD) method. Thermal conduction in nanotextured black-Si was explained using phonon Monte-Carlo simulations at the nanoscale. Strategies for creating larger thermal gradient on Peltier element using nanotextured light absorbers is discussed.

Paper Details

Date Published: 17 April 2015
PDF: 10 pages
Proc. SPIE 9374, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VIII, 93740J (17 April 2015); doi: 10.1117/12.2082403
Show Author Affiliations
Yoshiaki Nishijima, Yokohama National Univ. (Japan)
A. Balčytis, Swinburne Univ. of Technology (Australia)
Australian National Fabrication Facility (Australia)
Ctr. for Physical Sciences and Technology (Lithuania)
R. Komatsu, Yokohama National Univ. (Japan)
T. Yamamura, Yokohama National Univ. (Japan)
G. Seniutinas, Swinburne Univ. of Technology (Australia)
Australian National Fabrication Facility (Australia)
Basil T. Wong, Swinburne Univ. of Technology (Malaysia)
S. Juodkazis, Swinburne Univ. of Technology (Australia)
Australian National Fabrication Facility (Australia)


Published in SPIE Proceedings Vol. 9374:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VIII
Georg von Freymann; Winston V. Schoenfeld; Raymond C. Rumpf; Henry Helvajian, Editor(s)

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