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Giant enhancement in ferroelectric polarization under illumination
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dc.contributor.author | Borkar, Hitesh | |
dc.contributor.author | Rao, Vaibhav | |
dc.contributor.author | Tomar, M. | |
dc.contributor.author | Gupta, Vinay | |
dc.contributor.author | Scott, J. F. | |
dc.contributor.author | Kumar, Ashok | |
dc.date.accessioned | 2018-12-16T00:37:42Z | |
dc.date.available | 2018-12-16T00:37:42Z | |
dc.date.issued | 2018-03 | |
dc.identifier | 251795610 | |
dc.identifier | beaff9ca-8f97-43b3-abc5-d780cfdafb6b | |
dc.identifier | 85044847374 | |
dc.identifier | 000428128300016 | |
dc.identifier.citation | Borkar , 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.2017.12.004 | en |
dc.identifier.issn | 2352-4928 | |
dc.identifier.other | RIS: urn:1DDD533A74E2B8EBCE56FB2F34A2AC5C | |
dc.identifier.uri | https://hdl.handle.net/10023/16699 | |
dc.description | AK 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.abstract | We 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.extent | 8 | |
dc.format.extent | 1697417 | |
dc.language.iso | eng | |
dc.relation.ispartof | Materials Today Communications | en |
dc.subject | QC Physics | en |
dc.subject | T Technology | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | T | en |
dc.title | Giant enhancement in ferroelectric polarization under illumination | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1016/j.mtcomm.2017.12.004 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2018-12-16 | |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S2352492817301769#appd002 | en |
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