Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 104, Issue -, Pages 119-126Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2021.06.048
Keywords
Photovoltaic; Ferroelectric; PIMN-PT ceramics; Open-circuit voltage; Domain structure
Funding
- NSFC [11304061, 51572056, 11974093]
- National Key Basic Re-search Program of China [2013CB632900]
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This study investigates the anomalous photovoltaic effect of relaxor-based ferroelectric PIMN-PT ceramics, achieving excellent photovoltaic performance with an ultrahigh open-circuit voltage. The results suggest that PIMN-PT ceramics are a potential candidate for photovoltaic solar energy conversion devices.
Recently, the anomalous photovoltaic effect of ferroelectric materials has attracted considerable attention in the construction of efficient solar cells owing to the above-bandgap photovoltage of these materials. In this study, we investigate the anomalous photovoltaic effect of relaxor-based ferroelectric Pb(In1/2Nb1/2)O-3-Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PIMN-PT) ceramics with large remnant polarization and a narrow optical bandgap. Excellent photovoltaic performance with an ultrahigh open-circuit voltage of 23 V (575 V/cm) is achieved, which is higher than the open-circuit voltages of all reported polycrystalline materials with similar thickness. The phase structure, microstructure morphology, domain structure, ferroelectric and optical characteristics are analyzed, which could provide clues to the origin of the ultrahigh open-circuit voltage of PIMN-PT ceramics. The results suggest that the relaxor-based ferroelectric PIMNPT system is a potential candidate for photovoltaic solar energy conversion devices. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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