Synthesis and photoluminescence of metal coated ZnO nanoparticles

Author

Shemis, M.A. ; Gondal, M.A. ; Alkhazraji, E. ; Najmi, M. ; Abalkhail, M. ; Khan, I. ; Susilo, T.B. ; Rashid, S.G. ; Alsunaidi, M.

Author_Institution

Electr. Eng. Dept., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia

fYear

2014

fDate

15-17 Dec. 2014

Firstpage

75

Lastpage

78

Abstract

ZnO nanoparticles were prepared by precipitation method from zinc nitrate and ammonium carbonate solutions, and annealing at 500°C. The XRD pattern shows that the ZnO nanoparticles have pure wurtzite structure. ZnO nanoparticles were coated with Au, Ag and Pd atoms using wet chemical treatment. The effect of coating ZnO nanoparticles with Au, Ag and Pd atoms on the photoluminescence properties is investigated. Results show that ZnO-plasmonics can play an important role in emission enhancement. In particular, it was found that coating ZnO nanoparticles with metals enhances the ZnO band edge emission by about 11 to 20 %, depending on the type of metal, and quenches the visible emission by about 50 %.

Keywords

II-VI semiconductors; X-ray diffraction; annealing; gold; nanofabrication; nanoparticles; palladium; photoluminescence; plasmonics; precipitation (physical chemistry); radiation quenching; semiconductor growth; silver; surface plasmons; visible spectra; wide band gap semiconductors; zinc compounds; XRD; ZnO-Ag; ZnO-Au; ZnO-Pd; ammonium carbonate solutions; annealing; band edge emission; metal coated zinc compound nanoparticles; photoluminescence properties; plasmonics; precipitation method; quenching; surface plasmons; temperature 500 degC; visible emission; wet chemical treatment; wurtzite structure; zinc nitrate solutions; Luminescence; Nanoparticles; Surface treatment; Surface waves; Wires; X-ray scattering; Zinc oxide; ZnO nanoparticles; metal coating; photoluminescence; surface plasmons enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

High-capacity Optical Networks and Emerging/Enabling Technologies (HONET), 2014 11th Annual

Conference_Location

Charlotte, NC

Print_ISBN

978-1-4799-6939-5

Type

conf

DOI

10.1109/HONET.2014.7029365

Filename

7029365