Comparative Studies of Undoped/Al-Doped/In-Doped ZnO Transparent Conducting Oxide Thin Films in Optoelectronic Applications

In this paper, undoped, Al-, and In-doped zinc oxide thin films were deposited. Film growth was performed using the sol–gel technique. The method included (a) preparing homogeneous and stable solutions of zinc acetate 2-hydrate, (b) mixing them with aluminum nitrate and indium acetate in 2-methoxyet...

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Bibliographic Details
Published in:Chemosensors 2022-05, Vol.10 (5), p.162
Main Authors: Koralli, Panagiota, Fiat Varol, Songül, Mousdis, George, Mouzakis, Dionysios, Merdan, Ziya, Kompitsas, Michael
Format: Article
Language:English
Subjects:
Acetic acid
Al-doped ZnO
Aluminum
Comparative studies
Efficiency
Electrodes
Film growth
Gases
Glass substrates
In-doped ZnO
Indium
Light emitting diodes
Methyl cellosolve
Molecular beam epitaxy
Morphology
nanomaterials
Nitrates
Optical properties
Optoelectronics
Photovoltaic cells
Sensors
Sol-gel processes
sol–gel spin coating
Spin coating
Thin films
VOCs
Volatile organic compounds
Zinc acetate
Zinc oxide
Zinc oxides
ZnO
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Summary:In this paper, undoped, Al-, and In-doped zinc oxide thin films were deposited. Film growth was performed using the sol–gel technique. The method included (a) preparing homogeneous and stable solutions of zinc acetate 2-hydrate, (b) mixing them with aluminum nitrate and indium acetate in 2-methoxyethanol and 2-aminoethanol solutions with various concentrations, and (c) spin coating them onto transparent glass substrates. After thermal annealing, the films showed a high transparency (80–90%) and good stability. Using typical diagnostic tools, the structural, morphological, optical, and electrical film properties were investigated and linked to the dopant type, and concentrations in view of optoelectronics were investigated.
ISSN:2227-9040
2227-9040
DOI:10.3390/chemosensors10050162