fig4
![Recent advances in heavily doped plasmonic copper chalcogenides: from synthesis to biological application](https://image.oaes.cc/553510e7-6758-40d0-97d1-4515ea225056/5754.fig.4.jpg)
Figure 4. (A) Electron transfer process under inert atmosphere from MV+• to Cu2-xS; (B) Fermi level equilibration between Cu2-xS Nanocrystals and MV2+/MV+• Redox Couple; (C) The absorption spectra, and (D) Electron transfer through LSPR response[73]. Copyright © American Chemical Society 2016.