fig4
![Selenium nanomaterials enabled flexible and wearable electronics](https://image.oaes.cc/a97ad97a-8f9b-4a0b-b149-171adb44b9f6/5492.fig.4.jpg)
Figure 4. (A) (i) Schematic diagram of the PVD method[57]; (ii) AFM height profile of a twin structure nanosheet; (iii) HAADF-STEM image of Se nanosheets; Copyright 2017, American Chemical Society. (B) (i) Schematic of the CVT method[71]; (ii) Optical microscope image of Se nanoflakes; (iii) AFM image of a Se nanoflake; Copyright 2018, © TÜRKİYE. (C) (i) Schematic demonstration of sonication liquid-phase exfoliation method[58]; (ii) TEM images of Se nanosheets; (iii) AFM images of Se nanosheets; Copyright 2017, Wiley-VCH.