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Title: Piezoelectric and opto-electrical properties of silver-doped ZnO nanorods synthesized by low temperature aqueous chemical method

In this paper, we have synthesized Zn{sub 1−x}Ag{sub x}O (x = 0, 0.03, 0.06, and 0.09) nanorods (NRs) via the hydrothermal method at low temperature on silicon substrate. The characterization and comparison between the different Zn{sub 1−x}Ag{sub x}O samples, indicated that an increasing Ag concentration from x = 0 to a maximum of x = 0.09; All samples show a preferred orientation of (002) direction with no observable change of morphology. As the quantity of the Ag dopant was changed, the transmittances, as well as the optical band gap were decreased. X-ray photoelectron spectroscopy data clearly indicate the presence of Ag in ZnO crystal lattice. A nanoindentation-based technique was used to measure the effective piezo-response of different concentrations of Ag for both direct and converse effects. The value of the piezoelectric coefficient (d{sub 33}) as well as the piezo potential generated from the ZnO NRs and Zn{sub 1−x}Ag{sub x}O NRs was found to decrease with the increase of Ag fraction. The finding in this investigation reveals that Ag doped ZnO is not suitable for piezoelectric energy harvesting devices.
Authors:
; ; ;  [1] ; ;  [2]
  1. Department of Science and Technology (ITN), Linköping University, Campus Norrkoping, SE-60 174 Norrkoping (Sweden)
  2. Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping (Sweden)
Publication Date:
OSTI Identifier:
22492267
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 7; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; CRYSTAL LATTICES; DOPED MATERIALS; ELECTRICAL PROPERTIES; GRAIN ORIENTATION; HYDROTHERMAL SYNTHESIS; MORPHOLOGY; NANOSTRUCTURES; PIEZOELECTRICITY; SILICON; SILVER; SUBSTRATES; X-RAY PHOTOELECTRON SPECTROSCOPY; ZINC OXIDES