Skip to content

Research at St Andrews

Giant enhancement in ferroelectric polarization under illumination

Research output: Contribution to journalArticlepeer-review

Standard

Giant enhancement in ferroelectric polarization under illumination. / Borkar, Hitesh; Rao, Vaibhav; Tomar, M.; Gupta, Vinay; Scott, J. F.; Kumar, Ashok.

In: Materials Today Communications, Vol. 14, 03.2018, p. 116-123.

Research output: Contribution to journalArticlepeer-review

Harvard

Borkar, H, Rao, V, Tomar, M, Gupta, V, Scott, JF & 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

APA

Borkar, H., Rao, V., Tomar, M., Gupta, V., Scott, J. F., & Kumar, A. (2018). Giant enhancement in ferroelectric polarization under illumination. Materials Today Communications, 14, 116-123. https://doi.org/10.1016/j.mtcomm.2017.12.004

Vancouver

Borkar H, Rao V, Tomar M, Gupta V, Scott JF, Kumar A. Giant enhancement in ferroelectric polarization under illumination. Materials Today Communications. 2018 Mar;14:116-123. https://doi.org/10.1016/j.mtcomm.2017.12.004

Author

Borkar, Hitesh ; Rao, Vaibhav ; Tomar, M. ; Gupta, Vinay ; Scott, J. F. ; Kumar, Ashok. / Giant enhancement in ferroelectric polarization under illumination. In: Materials Today Communications. 2018 ; Vol. 14. pp. 116-123.

Bibtex - Download

@article{beaff9ca8f9743b3abc5d780cfdafb6b,
title = "Giant enhancement in ferroelectric polarization under illumination",
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.",
author = "Hitesh Borkar and Vaibhav Rao and M. Tomar and Vinay Gupta and Scott, {J. F.} and Ashok Kumar",
note = "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.",
year = "2018",
month = mar,
doi = "10.1016/j.mtcomm.2017.12.004",
language = "English",
volume = "14",
pages = "116--123",
journal = "Materials Today Communications",
issn = "2352-4928",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Giant enhancement in ferroelectric polarization under illumination

AU - Borkar, Hitesh

AU - Rao, Vaibhav

AU - Tomar, M.

AU - Gupta, Vinay

AU - Scott, J. F.

AU - Kumar, Ashok

N1 - 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.

PY - 2018/3

Y1 - 2018/3

N2 - 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.

AB - 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.

UR - http://www.sciencedirect.com/science/article/pii/S2352492817301769#appd002

U2 - 10.1016/j.mtcomm.2017.12.004

DO - 10.1016/j.mtcomm.2017.12.004

M3 - Article

VL - 14

SP - 116

EP - 123

JO - Materials Today Communications

JF - Materials Today Communications

SN - 2352-4928

ER -

Related by journal

  1. Functionalised solids delivering bioactive nitric oxide gas for therapeutic applications

    Gregg, S. T., Yuan, Q., Morris, R. E. & Xiao, B., Sep 2017, In: Materials Today Communications. 12, p. 95-105

    Research output: Contribution to journalArticlepeer-review

ID: 251795610

Top