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
|Author:||Bai, Yang1; Palosaari, Jaakko1; Tofel, Pavel2,3;|
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
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020101584162
John Wiley & Sons,
|Publish Date:|| 2021-07-16
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.
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
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 (Academy of Finland Funding decision)
© 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.