Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process
TiO<sub>2</sub> films exhibiting structural colors were successfully prepared using one-step electrochemical oxidation. Results of theoretical analyses and digital simulations revealed that the structural color of a TiO<sub>2</sub> thin film could be regulated by adjusting ox...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/15/4932 |
| _version_ | 1797412954610597888 |
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| author | Shumin Yang Ao Wang Xin Li Guochao Shi Yunkai Qi Jianjun Gu |
| author_facet | Shumin Yang Ao Wang Xin Li Guochao Shi Yunkai Qi Jianjun Gu |
| author_sort | Shumin Yang |
| collection | DOAJ |
| description | TiO<sub>2</sub> films exhibiting structural colors were successfully prepared using one-step electrochemical oxidation. Results of theoretical analyses and digital simulations revealed that the structural color of a TiO<sub>2</sub> thin film could be regulated by adjusting oxidation voltage and oxidation time with different oxidation voltages leading to changes in structural color annulus number. At a low oxidation voltage, each thin film exhibited a single structural color, while thin films with different structural colors were obtained by varying the oxidation time. By contrast, at a higher oxidation voltage, each film exhibited iridescent and circular structural color patterns associated with symmetrical decreases in surface oxidation current density along radial lines emanating from the film center to its outer edges. TiO<sub>2</sub> films exhibiting iridescent structural colorations have broad application prospects in industrial fields related to photocatalysis and photovoltaic cells. |
| first_indexed | 2024-03-09T05:10:32Z |
| format | Article |
| id | doaj.art-eb93c9c71039462cab8cb43aa4e9fa76 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T05:10:32Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-eb93c9c71039462cab8cb43aa4e9fa762023-12-03T12:50:36ZengMDPI AGMolecules1420-30492022-08-012715493210.3390/molecules27154932Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical ProcessShumin Yang0Ao Wang1Xin Li2Guochao Shi3Yunkai Qi4Jianjun Gu5College of Physics and Electronic Engineering, Hebei Normal University for Nationalities, Chengde 067000, ChinaCollege of Physics and Electronic Engineering, Hebei Normal University for Nationalities, Chengde 067000, ChinaCollege of Physics and Electronic Engineering, Hebei Normal University for Nationalities, Chengde 067000, ChinaDepartment of Biomedical Engineering, Chengde Medical University, Chengde 067000, ChinaCollege of Physics and Electronic Engineering, Hebei Normal University for Nationalities, Chengde 067000, ChinaCollege of Physics and Electronic Engineering, Hebei Normal University for Nationalities, Chengde 067000, ChinaTiO<sub>2</sub> films exhibiting structural colors were successfully prepared using one-step electrochemical oxidation. Results of theoretical analyses and digital simulations revealed that the structural color of a TiO<sub>2</sub> thin film could be regulated by adjusting oxidation voltage and oxidation time with different oxidation voltages leading to changes in structural color annulus number. At a low oxidation voltage, each thin film exhibited a single structural color, while thin films with different structural colors were obtained by varying the oxidation time. By contrast, at a higher oxidation voltage, each film exhibited iridescent and circular structural color patterns associated with symmetrical decreases in surface oxidation current density along radial lines emanating from the film center to its outer edges. TiO<sub>2</sub> films exhibiting iridescent structural colorations have broad application prospects in industrial fields related to photocatalysis and photovoltaic cells.https://www.mdpi.com/1420-3049/27/15/4932TiO<sub>2</sub> thin filmsstructural colorationelectrochemical oxidationnumerical simulation |
| spellingShingle | Shumin Yang Ao Wang Xin Li Guochao Shi Yunkai Qi Jianjun Gu Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process Molecules TiO<sub>2</sub> thin films structural coloration electrochemical oxidation numerical simulation |
| title | Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process |
| title_full | Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process |
| title_fullStr | Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process |
| title_full_unstemmed | Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process |
| title_short | Tuning Structural Colors of TiO<sub>2</sub> Thin Films Using an Electrochemical Process |
| title_sort | tuning structural colors of tio sub 2 sub thin films using an electrochemical process |
| topic | TiO<sub>2</sub> thin films structural coloration electrochemical oxidation numerical simulation |
| url | https://www.mdpi.com/1420-3049/27/15/4932 |
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