Figure 5.
(a) Molecule structure of ferritin ribbon and ferritin/inorganic Co-BND biocomposite. (b) Transfer characteristics of ferritin/Co-BND-based floating gate flash memory with different VG range. (c) Vth shift after programming and erasing operation with different VG. Reprinted with permission from [78]. Copyright 2008 AIP Publishing. (d) Vth shift in the transfer curves at Vds = −30 V with optical programming (365 nm, 0.153 mW/cm2) and −50 V erasing. (e) Multilevel Vth of CDs/silk-based flash memories under 365 nm illumination with different intensities. (f) Five different states of photonic flash memory device obtained with five continuous UV pulses for 1 s. Reprinted with permission from [83]. Copyright 2019 WILEY‐VCH