Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods
Here we present comparative studies of: (i) the formation of ZnO thin films via the sol-gel method using zinc acetate dihydrate (ZAD), 2-methoxyethanol (ME) as solvent, and the aminoalcohols (AA): ethanolamine, (<i>S</i>)-(+)-2-amino-1-propanol, (<i>S</i>)-(+)-2-amino-3-methy...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/6/1057 |
| _version_ | 1827748211144523776 |
|---|---|
| author | Anna Vilà Alberto Gómez-Núñez Xavier Alcobé Sergi Palacios Teo Puig Walz Concepción López |
| author_facet | Anna Vilà Alberto Gómez-Núñez Xavier Alcobé Sergi Palacios Teo Puig Walz Concepción López |
| author_sort | Anna Vilà |
| collection | DOAJ |
| description | Here we present comparative studies of: (i) the formation of ZnO thin films via the sol-gel method using zinc acetate dihydrate (ZAD), 2-methoxyethanol (ME) as solvent, and the aminoalcohols (AA): ethanolamine, (<i>S</i>)-(+)-2-amino-1-propanol, (<i>S</i>)-(+)-2-amino-3-methyl-1-butanol, 2-aminophenol, and aminobenzyl alcohol, and (ii) elemental analyses, infrared spectroscopy, X-ray diffraction, scanning electron microscopy, absorption and emission spectra of films obtained after deposition by drop coating on glass surface, and thermal treatments at 300, 400, 500 and 600 °C. The results obtained provide conclusive evidences of the influence of the AA used (aliphatic vs. aromatic) on the ink stability (prior to deposition), and on the composition, structures, morphologies, and properties of films after calcination, in particular, those due to the different substituents, H, Me, or <sup>i</sup>Pr, and to the presence or the absence of a –CH<sub>2</sub> unit. Aliphatic films, more stable and purer than aromatic ones, contained the ZnO wurtzite form for all annealing temperatures, while the cubic sphalerite (zinc-blende) form was also detected after using aromatic AAs. Films having frayed fibers or quartered layers or uniform yarns evolved to “neuron-like” patterns. UV and photoluminescence studies revealed that these AAs also affect the optical band gap, the structural defects, and photo-optical properties of the films. |
| first_indexed | 2024-03-11T06:04:58Z |
| format | Article |
| id | doaj.art-38e10987758a4be0894046b22d92e30d |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T06:04:58Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-38e10987758a4be0894046b22d92e30d2023-11-17T13:00:56ZengMDPI AGNanomaterials2079-49912023-03-01136105710.3390/nano13061057Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel MethodsAnna Vilà0Alberto Gómez-Núñez1Xavier Alcobé2Sergi Palacios3Teo Puig Walz4Concepción López5Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainDepartment of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainCentres Científics i Tecnològics (CCiTUB), University of Barcelona, C/Lluís Solé i Sabaris 1-3, 08028 Barcelona, SpainDepartment of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainDepartment of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainDepartment of Inorganic and Organic Chemistry (Section of Inorganic Chemistry), Faculty of Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainHere we present comparative studies of: (i) the formation of ZnO thin films via the sol-gel method using zinc acetate dihydrate (ZAD), 2-methoxyethanol (ME) as solvent, and the aminoalcohols (AA): ethanolamine, (<i>S</i>)-(+)-2-amino-1-propanol, (<i>S</i>)-(+)-2-amino-3-methyl-1-butanol, 2-aminophenol, and aminobenzyl alcohol, and (ii) elemental analyses, infrared spectroscopy, X-ray diffraction, scanning electron microscopy, absorption and emission spectra of films obtained after deposition by drop coating on glass surface, and thermal treatments at 300, 400, 500 and 600 °C. The results obtained provide conclusive evidences of the influence of the AA used (aliphatic vs. aromatic) on the ink stability (prior to deposition), and on the composition, structures, morphologies, and properties of films after calcination, in particular, those due to the different substituents, H, Me, or <sup>i</sup>Pr, and to the presence or the absence of a –CH<sub>2</sub> unit. Aliphatic films, more stable and purer than aromatic ones, contained the ZnO wurtzite form for all annealing temperatures, while the cubic sphalerite (zinc-blende) form was also detected after using aromatic AAs. Films having frayed fibers or quartered layers or uniform yarns evolved to “neuron-like” patterns. UV and photoluminescence studies revealed that these AAs also affect the optical band gap, the structural defects, and photo-optical properties of the films.https://www.mdpi.com/2079-4991/13/6/1057ZnO filmssol-gelaminoalcoholstructural characterizationelemental analysisIR spectroscopy |
| spellingShingle | Anna Vilà Alberto Gómez-Núñez Xavier Alcobé Sergi Palacios Teo Puig Walz Concepción López Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods Nanomaterials ZnO films sol-gel aminoalcohol structural characterization elemental analysis IR spectroscopy |
| title | Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods |
| title_full | Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods |
| title_fullStr | Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods |
| title_full_unstemmed | Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods |
| title_short | Influence of the Nature of Aminoalcohol on ZnO Films Formed by Sol-Gel Methods |
| title_sort | influence of the nature of aminoalcohol on zno films formed by sol gel methods |
| topic | ZnO films sol-gel aminoalcohol structural characterization elemental analysis IR spectroscopy |
| url | https://www.mdpi.com/2079-4991/13/6/1057 |
| work_keys_str_mv | AT annavila influenceofthenatureofaminoalcoholonznofilmsformedbysolgelmethods AT albertogomeznunez influenceofthenatureofaminoalcoholonznofilmsformedbysolgelmethods AT xavieralcobe influenceofthenatureofaminoalcoholonznofilmsformedbysolgelmethods AT sergipalacios influenceofthenatureofaminoalcoholonznofilmsformedbysolgelmethods AT teopuigwalz influenceofthenatureofaminoalcoholonznofilmsformedbysolgelmethods AT concepcionlopez influenceofthenatureofaminoalcoholonznofilmsformedbysolgelmethods |