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

Jain, Gunisha and Macias-Montero, Manuel and Velusamy, Tamilselvan and Maguire, Paul and Mariotti, Davide (2017) Porous zinc oxide nanocrystalline film deposition by atmospheric pressure plasma : fabrication and energy band estimation. Plasma Processes and Polymers, 14 (12). 1700052. ISSN 1612-8869 (https://doi.org/10.1002/ppap.201700052)

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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.

ORCID iDs

Jain, Gunisha, Macias-Montero, Manuel, Velusamy, Tamilselvan, Maguire, Paul and Mariotti, Davide ORCID logoORCID: https://orcid.org/0000-0003-1504-4383;
CORE (COnnecting REpositories)