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Rapid, one-step thermolysis synthesis of large-scaled molybdenum disulfide thin films with high mobility.

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Title: Rapid, one-step thermolysis synthesis of large-scaled molybdenum disulfide thin films with high mobility.
Authors: Wu, Tai-Yu1 (AUTHOR), Wang, Li-Wen1 (AUTHOR), Wang, Jia-Hao1 (AUTHOR), Chen, Bo-Chun1 (AUTHOR), Chu, Sheng-Yuan1 (AUTHOR) chusy@mail.ncku.edu.tw
Source: Ceramics International. Mar2024, Vol. 50 Issue 5, p7970-7977. 8p.
Subjects: Thin films, Thermolysis, Molybdenum sulfides, Charge carrier mobility, Molybdenum disulfide, Powders, Sulfur, Raman spectroscopy
Abstract: In this study, a simple and rapid method for the synthesis of molybdenum disulfide (MoS 2) through thermolysis was demonstrated. In the previous reported work, the thermolysis synthesis of MoS 2 usually required a two-step process. The process is time-consuming, and need high-temperature (900 °C). In this study, we synthesize large-area thin films quickly in a single step at 450 °C using both hydrogen gas and sulfur powders for synthesis and defect filling at the same time. The layer number of MoS 2 films, controlled by the precursor concentration, is determined to be between 3 and 10 layers via Raman spectroscopy and TEM analysis. XPS analysis revealed the optimal amount of sulfur powders for vacancy refilling, and films prepared with this amount exhibited high carrier mobility of up to 220 cm2/Vs. According to the author's knowledge, the carrier mobility of proposed samples is much higher than that of the reported data. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International 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.)
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  Label: Title
  Group: Ti
  Data: Rapid, one-step thermolysis synthesis of large-scaled molybdenum disulfide thin films with high mobility.
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  Data: <searchLink fieldCode="AR" term="%22Wu%2C+Tai-Yu%22">Wu, Tai-Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Li-Wen%22">Wang, Li-Wen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jia-Hao%22">Wang, Jia-Hao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Bo-Chun%22">Chen, Bo-Chun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chu%2C+Sheng-Yuan%22">Chu, Sheng-Yuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chusy@mail.ncku.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Mar2024, Vol. 50 Issue 5, p7970-7977. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Thermolysis%22">Thermolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Molybdenum+sulfides%22">Molybdenum sulfides</searchLink><br /><searchLink fieldCode="DE" term="%22Charge+carrier+mobility%22">Charge carrier mobility</searchLink><br /><searchLink fieldCode="DE" term="%22Molybdenum+disulfide%22">Molybdenum disulfide</searchLink><br /><searchLink fieldCode="DE" term="%22Powders%22">Powders</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfur%22">Sulfur</searchLink><br /><searchLink fieldCode="DE" term="%22Raman+spectroscopy%22">Raman spectroscopy</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, a simple and rapid method for the synthesis of molybdenum disulfide (MoS 2) through thermolysis was demonstrated. In the previous reported work, the thermolysis synthesis of MoS 2 usually required a two-step process. The process is time-consuming, and need high-temperature (900 °C). In this study, we synthesize large-area thin films quickly in a single step at 450 °C using both hydrogen gas and sulfur powders for synthesis and defect filling at the same time. The layer number of MoS 2 films, controlled by the precursor concentration, is determined to be between 3 and 10 layers via Raman spectroscopy and TEM analysis. XPS analysis revealed the optimal amount of sulfur powders for vacancy refilling, and films prepared with this amount exhibited high carrier mobility of up to 220 cm2/Vs. According to the author's knowledge, the carrier mobility of proposed samples is much higher than that of the reported data. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ceramics International 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:
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      – Type: doi
        Value: 10.1016/j.ceramint.2023.12.125
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 7970
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      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Thermolysis
        Type: general
      – SubjectFull: Molybdenum sulfides
        Type: general
      – SubjectFull: Charge carrier mobility
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      – SubjectFull: Molybdenum disulfide
        Type: general
      – SubjectFull: Powders
        Type: general
      – SubjectFull: Sulfur
        Type: general
      – SubjectFull: Raman spectroscopy
        Type: general
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      – TitleFull: Rapid, one-step thermolysis synthesis of large-scaled molybdenum disulfide thin films with high mobility.
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          Name:
            NameFull: Wu, Tai-Yu
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            NameFull: Wang, Li-Wen
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            NameFull: Wang, Jia-Hao
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            NameFull: Chen, Bo-Chun
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            NameFull: Chu, Sheng-Yuan
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              M: 03
              Text: Mar2024
              Type: published
              Y: 2024
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