Alkali-Assisted Phosphorene Stabilization with Robust Device Performances

Yan, Shancheng; Song, Haizeng; Wan, Liwen F; Liu, Shuren; Wu, Han; Shi, Yi; Yao, Jie

doi:10.1021/acs.nanolett.9b03115

Title: Alkali-Assisted Phosphorene Stabilization with Robust Device Performances

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Abstract

Phosphorene (few-layer black phosphorus) has been widely investigated for its unique optical and electronic properties. However, it is challenging to synthesize and process stable phosphorene as it degrades rapidly upon exposure to oxygen and moisture under ambient conditions, which has limited its use in practical applications. In this paper, we propose an alkali-assisted stabilization process to produce high-quality phosphorene nanosheets. Our morphology measurements show that alkali-treated phosphorene remains stable for over 7 days in air. Electrical measurements on alkali-treated BP devices further proved its stable electrical property under ambient conditions. We further demonstrate superior light-assisted electrochemical water splitting performance using stable phosphorene. We attribute the stabilization effect to the chemical modification of the surface of phosphorene with P–OH bond formation. This study paves the avenue for the implementation of phosphorene devices in ambient conditions.

Authors:

Yan, Shancheng ^[1]; Song, Haizeng ^[2]; Wan, Liwen F ^[3]; Liu, Shuren ^[4]; Wu, Han ^[2]; Shi, Yi ^[2]; Yao, Jie ^[5]

Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering; Nanjing Univ. of Posts and Telecommunications (China). School of Electronic Science and Engineering
Nanjing Univ. (China). School of Electronic Science and Engineering
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering
Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division

Publication Date:: 2019-12-10

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); Samsung Advanced Institute of Technology

OSTI Identifier:: 1646562

Report Number(s):: LLNL-JRNL-773210
Journal ID: ISSN 1530-6984; 965313

Grant/Contract Number:: AC52-07NA27344; 037361-003

Resource Type:: Accepted Manuscript

Journal Name:: Nano Letters

Additional Journal Information:: Journal Volume: 20; Journal Issue: 1; Journal ID: ISSN 1530-6984

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; phosphorene; liquid exfoliation; chemical stability; electrochemical water splitting; materials science

Citation Formats


                    Yan, Shancheng, Song, Haizeng, Wan, Liwen F, Liu, Shuren, Wu, Han, Shi, Yi, and Yao, Jie. Alkali-Assisted Phosphorene Stabilization with Robust Device Performances.  United States: N. p., 2019. 
Web.  doi:10.1021/acs.nanolett.9b03115.

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                    Yan, Shancheng, Song, Haizeng, Wan, Liwen F, Liu, Shuren, Wu, Han, Shi, Yi, & Yao, Jie. Alkali-Assisted Phosphorene Stabilization with Robust Device Performances.  United States.  https://doi.org/10.1021/acs.nanolett.9b03115

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                    Yan, Shancheng, Song, Haizeng, Wan, Liwen F, Liu, Shuren, Wu, Han, Shi, Yi, and Yao, Jie. Tue .  
"Alkali-Assisted Phosphorene Stabilization with Robust Device Performances".  United States.  https://doi.org/10.1021/acs.nanolett.9b03115.  https://www.osti.gov/servlets/purl/1646562.

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@article{osti_1646562,

  title        = {Alkali-Assisted Phosphorene Stabilization with Robust Device Performances},

  author       = {Yan, Shancheng and Song, Haizeng and Wan, Liwen F and Liu, Shuren and Wu, Han and Shi, Yi and Yao, Jie},

  abstractNote = {Phosphorene (few-layer black phosphorus) has been widely investigated for its unique optical and electronic properties. However, it is challenging to synthesize and process stable phosphorene as it degrades rapidly upon exposure to oxygen and moisture under ambient conditions, which has limited its use in practical applications. In this paper, we propose an alkali-assisted stabilization process to produce high-quality phosphorene nanosheets. Our morphology measurements show that alkali-treated phosphorene remains stable for over 7 days in air. Electrical measurements on alkali-treated BP devices further proved its stable electrical property under ambient conditions. We further demonstrate superior light-assisted electrochemical water splitting performance using stable phosphorene. We attribute the stabilization effect to the chemical modification of the surface of phosphorene with P–OH bond formation. This study paves the avenue for the implementation of phosphorene devices in ambient conditions.},

  doi          = {10.1021/acs.nanolett.9b03115},

  journal      = {Nano Letters},

  number       = 1,

  volume       = 20,

  place        = {United States},

  year         = {2019},

  month        = {12}

}

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