Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis
Abstract The effect of copper doping on structural, electrical, and optical properties of zinc oxide films was evaluated. Copper-doped films (ZnO:Cu) were successfully deposited on a glass substrate by spray pyrolysis at doping levels of 0, 2.5, and 7.5 at% (ZnO, ZC2.5, ZC7.5). All films were polycr...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Cerâmica
2020-07-01
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| Series: | Cerâmica |
| Subjects: | |
| Online Access: | http://www.scielo.br/pdf/ce/v66n379/1678-4553-ce-66-379-284.pdf |
| _version_ | 1818366433166360576 |
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| author | J. S. C. Licurgo G. R. de Almeida Neto H. R. Paes Junior |
| author_facet | J. S. C. Licurgo G. R. de Almeida Neto H. R. Paes Junior |
| author_sort | J. S. C. Licurgo |
| collection | DOAJ |
| description | Abstract The effect of copper doping on structural, electrical, and optical properties of zinc oxide films was evaluated. Copper-doped films (ZnO:Cu) were successfully deposited on a glass substrate by spray pyrolysis at doping levels of 0, 2.5, and 7.5 at% (ZnO, ZC2.5, ZC7.5). All films were polycrystalline, single-phase with ZnO hexagonal wurtzite structure. The films presented nanostructured crystallites, from 36.7 to 38.2 nm. Cu doping increased the electrical conductivity of the ZnO films; this change was proportional to the Cu concentration. The films presented high optical transmittance of 70-80% in the visible wavelength. The energy gap decreased upon Cu doping. The photoluminescence spectrum of all films displayed an intense ultraviolet emission and a weaker blue emission. The emissions shifted to lower wavelengths with increasing dopant concentrations. ZC7.5 presented the most promising properties for an application as transparent conducting oxide: intense optical transmittance and UV photoluminescence, also the lowest electrical resistivity. |
| first_indexed | 2024-12-13T22:36:05Z |
| format | Article |
| id | doaj.art-fbef4972c0754d8ea13df04fc8e1f6f2 |
| institution | Directory Open Access Journal |
| issn | 1678-4553 |
| language | English |
| last_indexed | 2024-12-13T22:36:05Z |
| publishDate | 2020-07-01 |
| publisher | Associação Brasileira de Cerâmica |
| record_format | Article |
| series | Cerâmica |
| spelling | doaj.art-fbef4972c0754d8ea13df04fc8e1f6f22022-12-21T23:28:59ZengAssociação Brasileira de CerâmicaCerâmica1678-45532020-07-016637928429010.1590/0366-69132020663792877Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysisJ. S. C. Licurgohttps://orcid.org/0000-0002-8238-5842G. R. de Almeida NetoH. R. Paes JuniorAbstract The effect of copper doping on structural, electrical, and optical properties of zinc oxide films was evaluated. Copper-doped films (ZnO:Cu) were successfully deposited on a glass substrate by spray pyrolysis at doping levels of 0, 2.5, and 7.5 at% (ZnO, ZC2.5, ZC7.5). All films were polycrystalline, single-phase with ZnO hexagonal wurtzite structure. The films presented nanostructured crystallites, from 36.7 to 38.2 nm. Cu doping increased the electrical conductivity of the ZnO films; this change was proportional to the Cu concentration. The films presented high optical transmittance of 70-80% in the visible wavelength. The energy gap decreased upon Cu doping. The photoluminescence spectrum of all films displayed an intense ultraviolet emission and a weaker blue emission. The emissions shifted to lower wavelengths with increasing dopant concentrations. ZC7.5 presented the most promising properties for an application as transparent conducting oxide: intense optical transmittance and UV photoluminescence, also the lowest electrical resistivity.http://www.scielo.br/pdf/ce/v66n379/1678-4553-ce-66-379-284.pdfcopper-doped zinc oxide filmsspray pyrolysisluminescencetransparent conducting oxide |
| spellingShingle | J. S. C. Licurgo G. R. de Almeida Neto H. R. Paes Junior Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis Cerâmica copper-doped zinc oxide films spray pyrolysis luminescence transparent conducting oxide |
| title | Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis |
| title_full | Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis |
| title_fullStr | Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis |
| title_full_unstemmed | Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis |
| title_short | Structural, electrical and optical properties of copper-doped zinc oxide films deposited by spray pyrolysis |
| title_sort | structural electrical and optical properties of copper doped zinc oxide films deposited by spray pyrolysis |
| topic | copper-doped zinc oxide films spray pyrolysis luminescence transparent conducting oxide |
| url | http://www.scielo.br/pdf/ce/v66n379/1678-4553-ce-66-379-284.pdf |
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