University of Oulu

Vats, G., Peräntie, J., Juuti, J., Seidel, J. and Bai, Y. (2020), Coalition of Thermo–Opto–Electric Effects in Ferroelectrics for Enhanced Cyclic Multienergy Conversion. Energy Technol., 8: 2000500. doi:10.1002/ente.202000500

Coalition of thermo-opto-electric effects in ferroelectrics for enhanced cyclic multienergy conversion

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Author: Vats, Gaurav1; Peräntie, Jani2; Juuti, Jari2;
Organizations: 1School of Materials Science and Engineering, University of New South Wales, Sydney NSW 2052, Australia
2Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, FI-90014 Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2020101584141
Language: English
Published: John Wiley & Sons, 2020
Publish Date: 2022-07-23
Description:

Abstract

The concept of multisource energy harvesting (of light, kinetic, and thermal energy) using a single material has recently been proposed. Herein, the realization of this novel concept is discussed and insight into the electric field‐assisted modulation of photocurrent and pyroelectric current in a bandgap‐engineered ferroelectric KNBNNO ((K0.5Na0.5)NbO3‐2 mol% Ba(Ni0.5Nb0.5)O3−δ) is provided. Thereafter, direct current (DC) electrical modulation under the simultaneous inputs of light and thermal changes for photovoltaic and pyroelectric effects, respectively, is utilized to achieve several orders of increase in the output current density. This is attributed to a light‐assisted increase in the material’s electrical conductivity and ferroelectric photovoltaic effect. The phenomena of electro–optic and thermo–electro–optic DC modulations are further used to propose two novel energy‐conversion cycles. The performance of both the proposed energy conversion cycles is compared with that of the Olsen cycle. The electro–optic and thermo–electro–optic cycles are found to harvest 7–10 times more energy than the Olsen cycle alone, respectively. Moreover, both energy‐conversion cycles offer broader flexibility and ease in operating conditions, thus paving a way toward the practical applications of multisource energy harvesting with a single material for enhanced energy‐conversion capability and device/system compactness.

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Series: Energy technology
ISSN: 2194-4288
ISSN-E: 2194-4296
ISSN-L: 2194-4288
Volume: 8
Issue: 9
Article number: 2000500
DOI: 10.1002/ente.202000500
OADOI: https://oadoi.org/10.1002/ente.202000500
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Funding: The authors acknowledge support from the Australian Research Council (ARC) through Discovery Grants. G.V. acknowledges the financial support from the Tiina and Antti Herlin Foundation, Finland. J.P. acknowledges the funding by the Academy of Finland (grant number 298409). Y.B. would like to acknowledge the joint funding by the University of Oulu and Academy of Finland profiling action “Ubiquitous wireless sensor systems” (grant number 24302332). The authors also acknowledge the Centre for Material Analysis of the University of Oulu for the use of their facilities and for the fabrication of the electrodes.
Academy of Finland Grant Number: 298409
24302332
Detailed Information: 298409 (Academy of Finland Funding decision)
24302332 (Academy of Finland Funding decision)
Copyright information: © 2020 Wiley-VCH GmbH. This is the peer reviewed version of the following article: Vats, G., Peräntie, J., Juuti, J., Seidel, J. and Bai, Y. (2020), Coalition of Thermo–Opto–Electric Effects in Ferroelectrics for Enhanced Cyclic Multienergy Conversion. Energy Technol., 8: 2000500. doi:10.1002/ente.202000500, which has been published in final form at https://doi.org/10.1002/ente.202000500. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.