alexa Synthesis of few-layer GaSe nanosheets for high performance photodetectors.
Biochemistry

Biochemistry

Bioenergetics: Open Access

Author(s): Hu P, Wen Z, Wang L, Tan P, Xiao K

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Abstract Two-dimensional (2D) semiconductor nanomaterials hold great promises for future electronics and optics. In this paper, a 2D nanosheets of ultrathin GaSe has been prepared by using mechanical cleavage and solvent exfoliation method. Single- and few-layer GaSe nanosheets are exfoliated on an SiO(2)/Si substrate and characterized by atomic force microscopy and Raman spectroscopy. Ultrathin GaSe-based photodetector shows a fast response of 0.02 s, high responsivity of 2.8 AW(-1) and high external quantum efficiency of 1367\% at 254 nm, indicating that the two-dimensional nanostructure of GaSe is a new promising material for high performance photodetectors. This article was published in ACS Nano and referenced in Bioenergetics: Open Access

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