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説明:

We investigate the controlled thermal oxidation of individual TiS3 nanoribbons and its influence on the optoelectronic properties of TiS3-based photodetectors. We study the oxidation of TiS3 in powder form and single nanoribbons deposited on a glass substrate. We find that an individual TiS3 nanoribbon converts to crystalline TiO2 in approximately 5 minutes when kept at temperatures larger than 300 ℃. Control experiments performed on TiS3 nanoribbons fully encapsulated between hBN flakes confirm that the direct contact between TiS3 and air is necessary for the oxidation process to happen. After establishing the change in material properties we demonstrate the controlled oxidation of a TiS3 nanoribbon photodetector that allows tuning the cut-off wavelength and sensitivity of the device.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Controlled oxidation, titanium trisulfide, band structure

刊行年月日: 2020-04-09

出版者: MDPI AG

掲載誌:

• Nanomaterials (ISSN: 20794991) vol. 10 issue. 4 711

研究助成金:

• European Commission CNECTICT-604391
• Nederlandse Organisatie voor Wetenschappelijk Onderzoek 680-50-1515
• European Union’s Horizon 2020 793318
• MINECO FIS2016-79464-P
• MINECO MAT2015-65203-R
• Elemental Strategy Initiative JPMJCR15F3
• Gobierno Vasco IT578-13

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.3390/nano10040711

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更新時刻: 2025-02-26 16:30:19 +0900

MDRでの公開時刻: 2025-02-26 16:30:19 +0900