University of Oulu

Bai, Y., Palosaari, J., Tofel, P. and Juuti, J. (2020), A Single‐Material Multi‐Source Energy Harvester, Multifunctional Sensor, and Integrated Harvester–Sensor System—Demonstration of Concept. Energy Technol., 8: 2000461. doi:10.1002/ente.202000461

A single-material multi-source energy harvester, multifunctional sensor, and integrated harvester-sensor system-demonstration of concept

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Author: Bai, Yang1; Palosaari, Jaakko1; Tofel, Pavel2,3;
Organizations: 1Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, FI-90014 Oulu, Finland
2CEITEC – Central European Institute of Technology, Brno University of Technology, Purkynova 123, 61200 Brno, Czech Republic
3Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 10, 61600 Brno, Czech Republic
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2020101584162
Language: English
Published: John Wiley & Sons, 2020
Publish Date: 2021-07-16
Description:

Abstract

Single‐source energy harvesters that convert solar, thermal, or kinetic energy into electricity for small‐scale smart electronic devices and wireless sensor networks have been under development for decades. When an individual energy source is insufficient for the required electricity generation, multi‐source energy harvesting is indicated. Current technology usually combines different individual harvesters to achieve the capability of harvesting multiple energy sources simultaneously. However, this increases the overall size of the multi‐source harvester, but in microelectronics miniaturization is a critical consideration. Herein, an advanced approach is demonstrated to solve this issue. A single‐material energy harvesting/sensing device is fabricated using a (K0.5Na0.5)NbO3‐Ba(Ni0.5Nb0.5)O3–Δ (KNBNNO) ceramic as the sole energy‐conversion component. This single‐material component is able simultaneously to harvest or sense solar (visible light), thermal (temperature fluctuation), and kinetic (vibration) energy sources by incorporating its photovoltaic, pyroelectric, and piezoelectric effects, respectively. The interactions between different energy conversion effects, e.g., the influence of dynamic behavior on the photovoltaic effect and alternating current–direct current (AC–DC) signal trade‐offs, are assessed and discussed. This research is expected to stimulate energy‐efficient design of electronic devices by integrating both harvesting and sensing functions in the same material/component.

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Series: Energy technology
ISSN: 2194-4288
ISSN-E: 2194-4296
ISSN-L: 2194-4288
Volume: 8
Issue: 9
Article number: 2000461
DOI: 10.1002/ente.202000461
OADOI: https://oadoi.org/10.1002/ente.202000461
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Funding: Y.B. acknowledges 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. P.T acknowledges the support of the Czech Science Foundation/GACR (projects No.18-20498S and No.17-08153S). Y.B. and J.P. fabricated the samples, carried out the characterizations and analyzed the data. P.T. helped to characterize the material properties. All authors co-wrote the paper and discussed the implications of the results.
Academy of Finland Grant Number: 24302332
Detailed Information: 24302332 (Academy of Finland Funding decision)
Copyright information: © 2020 John Wiley & Sons. This is the peer reviewed version of the following article: Bai, Y., Palosaari, J., Tofel, P. and Juuti, J. (2020), A Single‐Material Multi‐Source Energy Harvester, Multifunctional Sensor, and Integrated Harvester–Sensor System—Demonstration of Concept. Energy Technol., 8: 2000461. doi:10.1002/ente.202000461, which has been published in final form at https://doi.org/10.1002/ente.202000461. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.