二次谐波在二维材料结构表征中的应用

夏芳芳, 王发坤, 胡海龙, 许翔, 李阳, 翟天佑

Application of Second Harmonic Generation in Characterization of 2D Materials

XIA Fangfang, WANG Fakun, HU Hailong, XU Xiang, LI Yang, ZHAI Tianyou

图9 二次谐波与光致发光、拉曼光谱联合表征二维材料(MoS2/WS2异质结)

Fig. 9 Characterization of 2D materials (MoS2/WS2 heterojunction) by SHG combined with photoluminescence and Raman spectroscopy (a) Atomic structure diagram; (b-c) Optical image and TEM image; (d, g) SHG intensity and mapping; (e, h) photoluminescence spectra at different positions; (f, i) Corresponding Raman spectra[52]