Impact of Zr/Ti ratio in the PZT on the photoreduction of silver nanoparticles

D. Tiwari; S. Dunn; Q. Zhang

doi:10.1016/j.materresbull.2009.01.016

Impact of Zr/Ti ratio in the PZT on the photoreduction of silver nanoparticles

D. Tiwari, S. Dunn, Q. Zhang

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Silver nanoparticle deposition from an aqueous solution of silver nitrate onto the surface of PZT thin films of stoichiometric compositions PbZr_0.3Ti_0.7O₃ and PbZr_0.52Ti_0.48O₃ has been investigated. The impact of Zr/Ti ratio on the photochemical properties of PZT is shown by the preferential growth of silver nanoparticles onto the surface. Photoreduction of silver occurs on both c⁺ and c^- domains on PbZr_0.52Ti_0.48O₃ whereas it occurs only on c⁺ domains on a PbZr_0.3Ti_0.7O₃ surface. The difference in deposition pattern is attributed to difference in magnitude of spontaneous polarization, effective hole concentration and band gap of the two samples which impacts shape and width of space charge layer in the two samples resulting in a change in band bending at the surface.

Original language	English
Pages (from-to)	1219-1224
Number of pages	6
Journal	Materials Research Bulletin
Volume	44
Issue number	6
DOIs	https://doi.org/10.1016/j.materresbull.2009.01.016
Publication status	Published - 3 Jun 2009
Externally published	Yes

Keywords

A. Nanostructures
A. Semiconductors
D. Ferroelectricity
D. Surface properties

Access to Document

10.1016/j.materresbull.2009.01.016

Cite this

@article{8eb53be4bd104374a6975fab8b68def3,

title = "Impact of Zr/Ti ratio in the PZT on the photoreduction of silver nanoparticles",

abstract = "Silver nanoparticle deposition from an aqueous solution of silver nitrate onto the surface of PZT thin films of stoichiometric compositions PbZr0.3Ti0.7O3 and PbZr0.52Ti0.48O3 has been investigated. The impact of Zr/Ti ratio on the photochemical properties of PZT is shown by the preferential growth of silver nanoparticles onto the surface. Photoreduction of silver occurs on both c+ and c- domains on PbZr0.52Ti0.48O3 whereas it occurs only on c+ domains on a PbZr0.3Ti0.7O3 surface. The difference in deposition pattern is attributed to difference in magnitude of spontaneous polarization, effective hole concentration and band gap of the two samples which impacts shape and width of space charge layer in the two samples resulting in a change in band bending at the surface.",

keywords = "A. Nanostructures, A. Semiconductors, D. Ferroelectricity, D. Surface properties",

author = "D. Tiwari and S. Dunn and Q. Zhang",

year = "2009",

month = jun,

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doi = "10.1016/j.materresbull.2009.01.016",

language = "English",

volume = "44",

pages = "1219--1224",

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TY - JOUR

T1 - Impact of Zr/Ti ratio in the PZT on the photoreduction of silver nanoparticles

AU - Tiwari, D.

AU - Dunn, S.

AU - Zhang, Q.

PY - 2009/6/3

Y1 - 2009/6/3

N2 - Silver nanoparticle deposition from an aqueous solution of silver nitrate onto the surface of PZT thin films of stoichiometric compositions PbZr0.3Ti0.7O3 and PbZr0.52Ti0.48O3 has been investigated. The impact of Zr/Ti ratio on the photochemical properties of PZT is shown by the preferential growth of silver nanoparticles onto the surface. Photoreduction of silver occurs on both c+ and c- domains on PbZr0.52Ti0.48O3 whereas it occurs only on c+ domains on a PbZr0.3Ti0.7O3 surface. The difference in deposition pattern is attributed to difference in magnitude of spontaneous polarization, effective hole concentration and band gap of the two samples which impacts shape and width of space charge layer in the two samples resulting in a change in band bending at the surface.

AB - Silver nanoparticle deposition from an aqueous solution of silver nitrate onto the surface of PZT thin films of stoichiometric compositions PbZr0.3Ti0.7O3 and PbZr0.52Ti0.48O3 has been investigated. The impact of Zr/Ti ratio on the photochemical properties of PZT is shown by the preferential growth of silver nanoparticles onto the surface. Photoreduction of silver occurs on both c+ and c- domains on PbZr0.52Ti0.48O3 whereas it occurs only on c+ domains on a PbZr0.3Ti0.7O3 surface. The difference in deposition pattern is attributed to difference in magnitude of spontaneous polarization, effective hole concentration and band gap of the two samples which impacts shape and width of space charge layer in the two samples resulting in a change in band bending at the surface.

KW - A. Nanostructures

KW - A. Semiconductors

KW - D. Ferroelectricity

KW - D. Surface properties

U2 - 10.1016/j.materresbull.2009.01.016

DO - 10.1016/j.materresbull.2009.01.016

M3 - Article

AN - SCOPUS:64149126549

SN - 0025-5408

VL - 44

SP - 1219

EP - 1224

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 6

ER -