Obtaining nanostructured ZnO onto Si coatings for optoelectronic applications via eco-friendly chemical preparation routes

Suchea, Mirela Petruta and Petromichelaki, Evangelia and Romanitan, Cosmin and Androulidaki, Maria and Manousaki, Alexandra and Viskadourakis, Zacharias and Ikram, Rabia and Pascariu, Petronela and Kenanakis, George (2021) Obtaining nanostructured ZnO onto Si coatings for optoelectronic applications via eco-friendly chemical preparation routes. Nanomaterials, 11 (10). ISSN 2079-4991, DOI https://doi.org/10.3390/nano11102490.

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Abstract

Although the research on zinc oxide (ZnO) has a very long history and its applications are almost countless as the publications on this subject are extensive, this semiconductor is still full of resources and continues to offer very interesting results worth publishing or warrants further investigation. The recent years are marked by the development of novel green chemical synthesis routes for semiconductor fabrication in order to reduce the environmental impacts associated with synthesis on one hand and to inhibit/suppress the toxicity and hazards at the end of their lifecycle on the other hand. In this context, this study focused on the development of various kinds of nanostructured ZnO onto Si substrates via chemical route synthesis using both classic solvents and some usual non-toxic beverages to substitute the expensive high purity reagents acquired from specialized providers. To our knowledge, this represents the first systematic study involving common beverages as reagents in order to obtain ZnO coatings onto Si for optoelectronic applications by the Aqueous Chemical Growth (ACG) technique. Moreover, the present study offers comparative information on obtaining nanostructured ZnO coatings with a large variety of bulk and surface morphologies consisting of crystalline nanostructures. It was revealed from X-ray diffraction analysis via Williamson-Hall plots that the resulting wurtzite ZnO has a large crystallite size and small lattice strain. These morphological features resulted in good optical properties, as proved by photoluminescence (PL) measurements even at room temperature (295 K). Good optical properties could be ascribed to complex surface structuring and large surface-to-volume ratios.

Item Type: Article
Funders: European Commission, Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation[T1EDK-02784], Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation[PN-III-P1-1.1-TE-2019-0594], Romanian Ministry of Research, Innovation and Digitization, CNCS/CCCDIUEFISCDI, Romanian Ministry of Research, Innovation and Digitalisation thorough MICRO-NANO-SIS PLUS core Programme
Uncontrolled Keywords: Zinc oxide;Green synthesis;Nanostructured;Optical properties; Optoelectronics
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 09 Sep 2022 02:14
Last Modified: 09 Sep 2022 02:14
URI: http://eprints.um.edu.my/id/eprint/34279

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