Infrared and Laser Engineering, Volume. 48, Issue 11, 1103004(2019)
Optical limiting two-dimensional antimonene via electron irradiation
Antimonene was prepared through liquid phase exfoliation of bulk materials. The as-prepared sample was characterized by scanning electron microscope (SEM), ultraviolet-visible (UV-vis) absorption spectroscopy, and Raman scattering spectroscopy in details. Broad absorption from ultraviolet to visible region was observed in the UV-vis absorption spectra. Two typical peaks assigned to Sb were detected in Raman spectra. A flat typical structure corresponding to two-dimensional materials was observed in micro-scopic characterization. Then Z-scan technique was utilized to test the third-order nonlinear optical properties of the sample. The as-prepared antimonene exhibited saturation absorption when excited by a laser source with pulse width of 4 ns and wavelength of 532 nm. The nonlinear absorption coefficient was -7.86×10-11 m/W. Upon electron irradiation, antimonene was successfully transformed into optical limiting materials, which exhibited reverse saturable absorption with a nonlinear absorption coefficient of 8.69×10-11 m/W.
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Zhang Lei, Wu Hao-Ran, Dong Tao-Tao, Zhang Ze-Qi, Wang Qiang, Zhang Hao-Li. Optical limiting two-dimensional antimonene via electron irradiation[J]. Infrared and Laser Engineering, 2019, 48(11): 1103004
Category: 特约专栏-“光限幅材料与器件”
Received: Jul. 6, 2019
Accepted: Aug. 5, 2019
Published Online: Dec. 9, 2019
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