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Giant enhancement in ferroelectric polarization under illumination

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dc.contributor.authorBorkar, Hitesh
dc.contributor.authorRao, Vaibhav
dc.contributor.authorTomar, M.
dc.contributor.authorGupta, Vinay
dc.contributor.authorScott, J. F.
dc.contributor.authorKumar, Ashok
dc.date.accessioned2018-12-16T00:37:42Z
dc.date.available2018-12-16T00:37:42Z
dc.date.issued2018-03
dc.identifier.citationBorkar , H , Rao , V , Tomar , M , Gupta , V , Scott , J F & Kumar , A 2018 , ' Giant enhancement in ferroelectric polarization under illumination ' , Materials Today Communications , vol. 14 , pp. 116-123 . https://doi.org/10.1016/j.mtcomm.2017.12.004en
dc.identifier.issn2352-4928
dc.identifier.otherPURE: 251795610
dc.identifier.otherPURE UUID: beaff9ca-8f97-43b3-abc5-d780cfdafb6b
dc.identifier.otherRIS: urn:1DDD533A74E2B8EBCE56FB2F34A2AC5C
dc.identifier.otherScopus: 85044847374
dc.identifier.otherWOS: 000428128300016
dc.identifier.urihttps://hdl.handle.net/10023/16699
dc.descriptionAK acknowledges the CSIR-MIST (PSC-0111) project for their financial assistance. Hitesh Borkar would like to acknowledge the UGC (SRF) to provide fellowship to carry out Ph.D program.en
dc.description.abstractWe report optical enhancement in polarization and dielectric constant near room temperature in Pb0.6Li0.2Bi0.2Zr0.2Ti0.8O3 (PLBZT) electro-ceramics; these are doubly substituted members of the most important commercial ferroelectric PbZr0.2Ti0.8O3 (PZT:20/80). Partial (40%) substitution of equal amounts of Li+1 and Bi+3 in PZT: 20/80 retains the PZT tetragonal structure with space group P4 mm. Under illumination of white light and weak 405 nm near-ultraviolet laser light (30 mW), an unexpectedly large (200-300%) change in polarization and displacement current was observed. Light also changes the dc conduction current density by one to two orders of magnitude with a large switchable open circuit voltage (Vocv ∼ 2 V) and short circuit current (Jscc∼ 5 × 10−8 A). The samples show a photo-current ON/OFF ratio of order 6:1 under illumination of weak light.
dc.format.extent8
dc.language.isoeng
dc.relation.ispartofMaterials Today Communicationsen
dc.rights© 2017 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.mtcomm.2017.12.004en
dc.subjectQC Physicsen
dc.subjectT Technologyen
dc.subjectNDASen
dc.subject.lccQCen
dc.subject.lccTen
dc.titleGiant enhancement in ferroelectric polarization under illuminationen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1016/j.mtcomm.2017.12.004
dc.description.statusPeer revieweden
dc.date.embargoedUntil2018-12-16
dc.identifier.urlhttp://www.sciencedirect.com/science/article/pii/S2352492817301769#appd002en


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