Effects of light on ferroelectric polarization and leakage current
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Effects of light on ferroelectric polarization and leakage current
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| Creator |
Borkar, Hitesh
Kumar, Ashok |
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| Subject |
Materials Science
Applied Physics/Condensed Matter |
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| Description |
We report the enhancement of polarization in polycrystalline ferroelectric thin films under illumination of light. The (Pb0.6Li0.2Bi0.2) (Zr0.2Ti0.8)O-3 (PLBZT) thin films were fabricated on a Pt/TiO2/SiO2/Si (100) substrate by pulsed-laser deposition (PLD) technique. The illumination of weak monochromatic light having a wavelength comparable to the bandgap of PLBZT showed the development of non-equilibrium charge carriers which enhance switchable polarization and displacement current. A Positive-up Negative-down (PUND) analysis also supports the enhancement of switchable polarization under illumination. The fatigue test indicates nearly 20-30% decrease in polarization after a long time write and read cycles. These results may provide an extra degree of freedom to create electrical WRITE and optical READ logic states.
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| Publisher |
Elsevier
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| Date |
2018-07
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3858/1/Effects%20of%20light%20on%20ferroelectric%20polarization.pdf
Borkar, Hitesh and Kumar, Ashok (2018) Effects of light on ferroelectric polarization and leakage current. Vacuum, 153. pp. 91-95. ISSN 0042-207X |
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| Relation |
http://npl.csircentral.net/3858/
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