Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation
Thin V2O5 films have been used as a passive electrode to be applied in some electrochromic devices that requires particular optical, crystallographic and electrochemical energy properties. These properties are greatly influenced by the film thickness. In this work were determined the thickness depen...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2017-12-01
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| Series: | Semina: Ciências Exatas e Tecnológicas |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semexatas/article/view/28729 |
| _version_ | 1818623852505202688 |
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| author | Luís Henrique Cardozo Amorin Larissa da Silva Martins Fábio Lopes Alexandre Urbano |
| author_facet | Luís Henrique Cardozo Amorin Larissa da Silva Martins Fábio Lopes Alexandre Urbano |
| author_sort | Luís Henrique Cardozo Amorin |
| collection | DOAJ |
| description | Thin V2O5 films have been used as a passive electrode to be applied in some electrochromic devices that requires particular optical, crystallographic and electrochemical energy properties. These properties are greatly influenced by the film thickness. In this work were determined the thickness dependence on, spectral optical absorption and particle size of the V2O5 thin films deposited by thermal evaporation in three nanoscale thickness. It is clear from the results that these particles size apparently are not influenced by the thickness of the film in its formation. Thus, it was verified that the microstructure, mainly the thickness, strongly influences the optical properties, especially the absorption energy, of these samples. The optical gap energy decrease as the film thickness increased. This actually proves that film thickness can be used as a way to modulate the materials optical absorption in optical and optoelectronic devices. |
| first_indexed | 2024-12-16T18:47:39Z |
| format | Article |
| id | doaj.art-0d50c7824b604ec892f77e531a03e903 |
| institution | Directory Open Access Journal |
| issn | 1676-5451 1679-0375 |
| language | English |
| last_indexed | 2024-12-16T18:47:39Z |
| publishDate | 2017-12-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Exatas e Tecnológicas |
| spelling | doaj.art-0d50c7824b604ec892f77e531a03e9032022-12-21T22:20:47ZengUniversidade Estadual de LondrinaSemina: Ciências Exatas e Tecnológicas1676-54511679-03752017-12-01382596510.5433/1679-0375.2017v38n2p5916921Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal EvaporationLuís Henrique Cardozo Amorin0Larissa da Silva Martins1Fábio Lopes2Alexandre Urbano3Universidade Estadual de LondrinaUniversidade Estadual de LondrinaUniversidade Estadual de LondrinaUniversidade Estadual de LondrinaThin V2O5 films have been used as a passive electrode to be applied in some electrochromic devices that requires particular optical, crystallographic and electrochemical energy properties. These properties are greatly influenced by the film thickness. In this work were determined the thickness dependence on, spectral optical absorption and particle size of the V2O5 thin films deposited by thermal evaporation in three nanoscale thickness. It is clear from the results that these particles size apparently are not influenced by the thickness of the film in its formation. Thus, it was verified that the microstructure, mainly the thickness, strongly influences the optical properties, especially the absorption energy, of these samples. The optical gap energy decrease as the film thickness increased. This actually proves that film thickness can be used as a way to modulate the materials optical absorption in optical and optoelectronic devices.http://www.uel.br/revistas/uel/index.php/semexatas/article/view/28729band gapvanadium oxidethermal evaporationthin films |
| spellingShingle | Luís Henrique Cardozo Amorin Larissa da Silva Martins Fábio Lopes Alexandre Urbano Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation Semina: Ciências Exatas e Tecnológicas band gap vanadium oxide thermal evaporation thin films |
| title | Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation |
| title_full | Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation |
| title_fullStr | Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation |
| title_full_unstemmed | Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation |
| title_short | Thickness Effect on the Optical Band Gap of V2O5 Thin Films Deposited by Thermal Evaporation |
| title_sort | thickness effect on the optical band gap of v2o5 thin films deposited by thermal evaporation |
| topic | band gap vanadium oxide thermal evaporation thin films |
| url | http://www.uel.br/revistas/uel/index.php/semexatas/article/view/28729 |
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