Aluminium oxide passivation films by liquid phase deposition for TiO2 ultraviolet solid–liquid heterojunction photodetectors.
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| Title: | Aluminium oxide passivation films by liquid phase deposition for TiO2 ultraviolet solid–liquid heterojunction photodetectors. |
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| Authors: | Huang, Jung-Jie1 (AUTHOR) jjhuang@mail.dyu.edu.tw, Lin, Ching-Huang2 (AUTHOR), Ho, Ying-Rong3 (AUTHOR), Chang, Yu-Han2 (AUTHOR) |
| Source: | Surface & Coatings Technology. Jun2020, Vol. 391, pN.PAG-N.PAG. 1p. |
| Subjects: | Liquid films, Oxide coating, Photodetectors, Heterojunctions, Surface roughness, Aluminum oxide |
| Abstract: | In this study, an aluminum oxide passivation layer generated through liquid-phase deposition (LPD) was used to improve the properties of a TiO 2 ultraviolet solid–liquid heterojunction photodetector. An aluminum oxide deposition solution was used to reduce the oxygen vacancies of TiO 2. Moreover, the surface roughness and porosity of the TiO 2 film improved after aluminum oxide deposition. An aluminum oxide passivation layer was deposited on a TiO 2 /indium-tin-oxide (ITO)/glass photodetector with the precursors of aluminum sulfate and sodium bicarbonate. The responsivity and turn-off time of the TiO 2 /ITO photodetector were 133 mA/W and 34.6 s, respectively. A dense and uniform film surface could be obtained after the aluminum oxide passivation layer was deposited on TiO 2 to form an Al 2 O 3 –TiO 2 composite film. After deposition, the responsivity and turn-off time improved to 208 mA/W and 27.3 s, respectively. Thus, the LPD passivation film is highly favorable for improving the properties of photodetectors. • Aluminium oxide passivation layer was used to improve the properties of TiO 2 ultraviolet photodetector. • The aluminium oxide film was prepared by liquid phase deposition. • Aluminium oxide passivation layer can reduce the oxygen vacancy of TiO 2 film. • The responsivity can be improved to from 133 mA/W to 208 mA/W after the passivation layer treatment. [ABSTRACT FROM AUTHOR] |
| Copyright of Surface & Coatings Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 143159387 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Aluminium oxide passivation films by liquid phase deposition for TiO2 ultraviolet solid–liquid heterojunction photodetectors. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Huang%2C+Jung-Jie%22">Huang, Jung-Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jjhuang@mail.dyu.edu.tw</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Ching-Huang%22">Lin, Ching-Huang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ho%2C+Ying-Rong%22">Ho, Ying-Rong</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chang%2C+Yu-Han%22">Chang, Yu-Han</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Surface+%26+Coatings+Technology%22">Surface & Coatings Technology</searchLink>. Jun2020, Vol. 391, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Liquid+films%22">Liquid films</searchLink><br /><searchLink fieldCode="DE" term="%22Oxide+coating%22">Oxide coating</searchLink><br /><searchLink fieldCode="DE" term="%22Photodetectors%22">Photodetectors</searchLink><br /><searchLink fieldCode="DE" term="%22Heterojunctions%22">Heterojunctions</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+roughness%22">Surface roughness</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, an aluminum oxide passivation layer generated through liquid-phase deposition (LPD) was used to improve the properties of a TiO 2 ultraviolet solid–liquid heterojunction photodetector. An aluminum oxide deposition solution was used to reduce the oxygen vacancies of TiO 2. Moreover, the surface roughness and porosity of the TiO 2 film improved after aluminum oxide deposition. An aluminum oxide passivation layer was deposited on a TiO 2 /indium-tin-oxide (ITO)/glass photodetector with the precursors of aluminum sulfate and sodium bicarbonate. The responsivity and turn-off time of the TiO 2 /ITO photodetector were 133 mA/W and 34.6 s, respectively. A dense and uniform film surface could be obtained after the aluminum oxide passivation layer was deposited on TiO 2 to form an Al 2 O 3 –TiO 2 composite film. After deposition, the responsivity and turn-off time improved to 208 mA/W and 27.3 s, respectively. Thus, the LPD passivation film is highly favorable for improving the properties of photodetectors. • Aluminium oxide passivation layer was used to improve the properties of TiO 2 ultraviolet photodetector. • The aluminium oxide film was prepared by liquid phase deposition. • Aluminium oxide passivation layer can reduce the oxygen vacancy of TiO 2 film. • The responsivity can be improved to from 133 mA/W to 208 mA/W after the passivation layer treatment. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Surface & Coatings Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.surfcoat.2020.125684 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Liquid films Type: general – SubjectFull: Oxide coating Type: general – SubjectFull: Photodetectors Type: general – SubjectFull: Heterojunctions Type: general – SubjectFull: Surface roughness Type: general – SubjectFull: Aluminum oxide Type: general Titles: – TitleFull: Aluminium oxide passivation films by liquid phase deposition for TiO2 ultraviolet solid–liquid heterojunction photodetectors. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Huang, Jung-Jie – PersonEntity: Name: NameFull: Lin, Ching-Huang – PersonEntity: Name: NameFull: Ho, Ying-Rong – PersonEntity: Name: NameFull: Chang, Yu-Han IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 02578972 Numbering: – Type: volume Value: 391 Titles: – TitleFull: Surface & Coatings Technology Type: main |
| ResultId | 1 |
