Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires

Kyoungwon Kim, Pulak Chandra Debnath, Deuk Hee Lee, Sangsig Kim, Sang Yeol Lee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

1, 3, and 5 wt.% silver-doped ZnO (SZO) nanowires (NWs) are grown by hot-walled pulsed laser deposition. After silver-doping process, SZO NWs show some change behaviors, including structural, electrical, and optical properties. In case of structural property, the primary growth plane of SZO NWs is switched from (002) to (103) plane, and the electrical properties of SZO NWs are variously measured to be about 4.26 × 10 6, 1.34 × 10 6, and 3.04 × 10 5 Ω for 1, 3, and 5 SZO NWs, respectively. In other words, the electrical properties of SZO NWs depend on different Ag ratios resulting in controlling the carrier concentration. Finally, the optical properties of SZO NWs are investigated to confirm p-type semiconductor by observing the exciton bound to a neutral acceptor (A 0X). Also, Ag presence in ZnO NWs is directly detected by both X-ray photoelectron spectroscopy and energy dispersive spectroscopy. These results imply that Ag doping facilitates the possibility of changing the properties in ZnO NWs by the atomic substitution of Ag with Zn in the lattice.

Original languageEnglish
Article number552
Pages (from-to)1-8
Number of pages8
JournalNanoscale Research Letters
Volume6
DOIs
Publication statusPublished - 2011 Dec 1

Fingerprint

Silver
Nanowires
Structural properties
Electric properties
nanowires
Optical properties
electrical properties
silver
Impurities
optical properties
impurities
Doping (additives)
p-type semiconductors
Pulsed laser deposition
Excitons
pulsed laser deposition
Carrier concentration
Energy dispersive spectroscopy
Substitution reactions
X ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires. / Kim, Kyoungwon; Debnath, Pulak Chandra; Lee, Deuk Hee; Kim, Sangsig; Lee, Sang Yeol.

In: Nanoscale Research Letters, Vol. 6, 552, 01.12.2011, p. 1-8.

Research output: Contribution to journalArticle

Kim, Kyoungwon ; Debnath, Pulak Chandra ; Lee, Deuk Hee ; Kim, Sangsig ; Lee, Sang Yeol. / Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires. In: Nanoscale Research Letters. 2011 ; Vol. 6. pp. 1-8.
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