University of Oulu

Bai, Y., Jantunen, H., & Juuti, J. (2019). Ferroelectric Oxides for Solar Energy Conversion, Multi‐Source Energy Harvesting/Sensing, and Opto‐Ferroelectric Applications. ChemSusChem.

Ferroelectric oxides for solar energy conversion, multi-source energy harvesting/sensing, and opto-ferroelectric applications

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Author: Bai, Yang1; Jantunen, Heli1; Juuti, Jari1
Organizations: 1Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, 90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
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Language: English
Published: John Wiley & Sons, 2019
Publish Date: 2019-09-16


Photoferroelectrics belong to a unique material family that exhibits both photovoltaic and ferroelectric effects simultaneously. The photovoltaic effect is the only known direct method of converting light into electricity and is the basis of solar cells. The ferroelectric effect can induce piezoelectric and pyroelectric effects, which are the working principles of widely used kinetic and thermal sensors, transducers, actuators, and energy harvesters. For a long time, photoferroelectric research was restricted to theoretical investigations only because of either the wide band gap (Eg), which is not able to effectively absorb visible light, or to the weak ferroelectricity caused by a narrow Eg. Recent scientific breakthroughs, however, have opened doors for the development of practical applications. In this article, emerging concepts of creating balanced photovoltaic and ferroelectric properties for photoferroelectrics, as well as those of novel applications in future devices, are presented.

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Series: ChemSusChem
ISSN: 1864-5631
ISSN-E: 1864-564X
ISSN-L: 1864-5631
Volume: 12
Issue: 12
Pages: 2540 - 2549
DOI: 10.1002/cssc.201900671
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The work has been jointly funded by University of Oulu and Academy of Finland profiling action “Ubiquitous wireless sensor systems” (grant number 24302332). The work has also been supported in part by the Academy of Finland 6Genesis Flagship (grant number 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.