Fig. 11.
a Photocurrent density and photoresponsivity of Te0.37@Se0.63 as a function of power density in 0.5 M KOH. b–d Stability measurements of the photocurrent density in different solutions, comparing on/off cycles for a fresh device to a device after 1 month of continuous exposure. Adapted with permission from [138]. Copyright 2019, WILEY–VCH. e Photocurrent density and photoresponsivity of the device as a function of incident laser power with a wavelength of 365 nm. f Stability measurement of the Te@Bi heterojunction-based photodetector. Adapted with permission from [139]. Copyright 2019. WILEY–VCH. g Photocurrent density as a function of the incident laser power with a wavelength of 475 nm in three different electrolytes. h Response and recovery time of the Te/Bi2Se3@Se self-powered device in 0.5 M HCl electrolyte. i Stability measurement of the Te/Bi2Se3@Se self-powered device in 0.5 M HCl electrolyte. Adapted with permission from [140]. Copyright 2019, WILEY–VCH