Brain‐Inspired Photonic Neuromorphic Devices using Photodynamic Amorphous Oxide Semiconductors and their Persistent Photoconductivity
Sungkyunkwan University · Chung-Ang University · +1 more institution
Abstract
The combination of a neuromorphic architecture and photonic computing may open up a new era for computational systems owing to the possibility of attaining high bandwidths and the low-computation-power requirements. Here, the demonstration of photonic neuromorphic devices based on amorphous oxide semiconductors (AOSs) that mimic major synaptic functions, such as short-term memory/long-term memory, spike-timing-dependent plasticity, and neural facilitation, is reported. The synaptic functions are successfully emulated using the inherent persistent photoconductivity (PPC) characteristic of AOSs. Systematic analysis of the dynamics of photogenerated carriers for various AOSs is carried out to understand the…
Citation impact
- FWCI
- 20.61
- Percentile
- 100%
- References
- 55
Authors
7Topics & keywords
- Neuromorphic engineering
- Materials science
- Photoconductivity
- Photonics
- Semiconductor
- Optoelectronics
- Amorphous solid
- Oxide
- Affordable and clean energy