Flexible transition metal dichalcogenide nanosheets for band-selective photodetection
説明
<jats:title>Abstract</jats:title><jats:p>The photocurrent conversions of transition metal dichalcogenide nanosheets are unprecedentedly impressive, making them great candidates for visible range photodetectors. Here we demonstrate a method for fabricating micron-thick, flexible films consisting of a variety of highly separated transition metal dichalcogenide nanosheets for excellent band-selective photodetection. Our method is based on the non-destructive modification of transition metal dichalcogenide sheets with amine-terminated polymers. The universal interaction between amine and transition metal resulted in scalable, stable and high concentration dispersions of a single to a few layers of numerous transition metal dichalcogenides. Our MoSe<jats:sub>2</jats:sub> and MoS<jats:sub>2</jats:sub> composites are highly photoconductive even at bending radii as low as 200 μm on illumination of near infrared and visible light, respectively. More interestingly, simple solution mixing of MoSe<jats:sub>2</jats:sub> and MoS<jats:sub>2</jats:sub> gives rise to blended composite films in which the photodetection properties were controllable. The MoS<jats:sub>2</jats:sub>/MoSe<jats:sub>2</jats:sub> (5:5) film showed broad range photodetection suitable for both visible and near infrared spectra.</jats:p>
収録刊行物
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- Nature Communications
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Nature Communications 6 (1), 8063-, 2015-09-02
Springer Science and Business Media LLC
