Incorporating chirped tilted piezoelectric superlattice inside thermoelectric modules and comparison with photovoltaic cells for space applications

Akbar Rahmani Nejad; Ahmad Rahmani Nejad

doi:10.1117/12.2569926

20 August 2020 Incorporating chirped tilted piezoelectric superlattice inside thermoelectric modules and comparison with photovoltaic cells for space applications

Akbar Rahmani Nejad, Ahmad Rahmani Nejad

Author Affiliations +

Proceedings Volume 11496, New Concepts in Solar and Thermal Radiation Conversion III; 114960N (2020) https://doi.org/10.1117/12.2569926
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Conference Poster

Abstract

Extending some new ideas on the topic of thermoelectric generator modules (TEGs), this paper analysis theoretically and mathematically the efficiency of thermoelectric modules when there is a specific cryogenic temperature on cold side i.e. exactly when the cold side temperature is -157°C, which is the temperature of shadow side of space stations (satellites and approximately surface temperature of moon and mars planets during nights) and there is 121°C on hot side of TEG module that is the temperature on sun-facing side of space stations (satellites and approximately surface temperature of moon and mars planets during days), and it also follows some independent new ideas to increase efficiency of TEG modules in all conditions, that is implementation of periodic structure of terahertz piezoelectric materials as chirped tilted superlattice for the phonon reflection to decrease thermal conductance significantly and benefit from piezoelectric characteristic of zinc oxide to harvest some fraction of wasted thermal energy as well.

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Akbar Rahmani Nejad and Ahmad Rahmani Nejad "Incorporating chirped tilted piezoelectric superlattice inside thermoelectric modules and comparison with photovoltaic cells for space applications", Proc. SPIE 11496, New Concepts in Solar and Thermal Radiation Conversion III, 114960N (20 August 2020); https://doi.org/10.1117/12.2569926

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