Porous zinc oxide nanocrystalline film deposition by atmospheric pressure plasma: Fabrication and energy band estimation

Gunisha Jain, Manuel Macias-Montero, Tamilselvan Velusamy, P Maguire, D Mariotti

Research output: Contribution to journalArticle

7 Citations (Scopus)
1 Downloads (Pure)

Abstract

Porous ZnO nanocrystalline films have drawn research attention due to improvement in gas sensing, adsorption, photocatalytic, and photovoltaic applications. However, scalable synthesis of porous nanostructures has been a challenge. Here, This paper reports a very easy, fast, and scalable one-step process for synthesis and deposition of porous ZnO nanocrystalline film by low-temperature atmospheric pressure plasma. The plasma is generated with radio frequency power using a metallic zinc wire as a precursor. Nanostructures have been synthesized and agglomerate to form a porous film at the substrate. Energy band structure of the deposited film has been investigated to understand the corresponding band alignment, which is relevant to many applications. An in-depth study of the grown nanostructured ZnO film has been included and characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, kelvin probe measurement, ultra-violet/visible absorption, and photoluminescence.
Original languageEnglish
Pages (from-to)1-8
JournalPlasma Processes and Polymers
Volume14
Issue number12
DOIs
Publication statusAccepted/In press - 24 May 2017

Keywords

  • band estimation
  • kelvin probe measurement
  • nanocrystalline films
  • non-thermal plasma
  • Raman spectroscopy

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