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Gold mediated ZnO nanostructure layers on Si surface by continuous spray pyrolysis with their optical properties

H. DHASMANA1,2,* , V. DUTTA1

Affiliation

  1. Photovoltaic Laboratory, Centre for energy studies, Indian Institute of Technology, Delhi-110016
  2. Department of Applied Science, Echelon Institute of Technology, Faridabad-121001

Abstract

The growth of ZnO nanostructure layers mediated by Au nanoparticles and thin film on Si surface are performed by continuous spray pyrolysis reactor using Zinc solution seed layer. XRD data suggests Au nanoparticles size dependent role in ZnO growth. SEM and PL measurement confirm enhancement in the surface coverage of ZnO nanorods growth, better optical quality of thin film with enhanced uniformity in nanorods size for larger Au nanoparticle mediated ZnO deposition. The chlorine incorporation in ZnO thin film due to seed layer content is removed by the presence of Erbium in the precursor solution. The reflectance show higher surface plasmon resonance and significant light reduction up to 54.7 % of existing reflectance in 300-1200 nm wavelength regions for larger size Au nanoparticles which may be helpful in the increase of photocurrent in Si solar cells..

Keywords

ZnO nanorods, Plasmonic effect, Au nanoparticles, Continuous Spray Pyrolysis.

Submitted at: Nov. 11, 2013
Accepted at: Nov. 13, 2014

Citation

H. DHASMANA, V. DUTTA, Gold mediated ZnO nanostructure layers on Si surface by continuous spray pyrolysis with their optical properties, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 11-12, pp. 1344-1350 (2014)