Inorganic Lead-Free and Bismuth-Based Perovskite Nanoscale-Thick Films for Memristors and Artificial Synapse Applications

Perovskite-Doped Modulated Color-Selective Photosynaptic Transistors for Target Object Recognition

“…Optical synaptic transistors, as one type of visual neural device, can simulate the perception of light signals in the human eye while memorizing and computing the perceived information. − In recent years, perovskite has been employed as the optoelectronic material in various fields, including solar cells, light-emitting diodes (LEDs), photodetectors, lasers, memristors, artificial synapse devices, pressure-induced emission, and so on. − The band gap of perovskite nanocrystals (PNCs) can usually be tuned by doping, which also stabilizes the lattice. − For example, Huang et al selected Zr-doped CsPbI 3 perovskite nanocrystals as the light-absorbing layer of the phototransistor memory to achieve broadband photoresponsive capability . Choi et al reported that the Mn-doped organic–inorganic halide perovskites enhanced the charge separation of the photoexcited charges and the phototransistor could emulate the synaptic functions .…”