Publications by authors named "Chuan Yu Han"
A Flexible Artificial Spiking Photoreceptor Enabled by a Single VO Mott Memristor for the Spike-Based Electronic Retina.
ACS Appl Mater Interfaces
October 2024
Article Synopsis
- The development of a bio-inspired flexible artificial spiking photoreceptor (ASP) using a single VO Mott memristor allows for the simultaneous sensing of light and encoding it into spikes, crucial for spiking neural networks.
- This ASP exhibits excellent photosensitivity across a wide range (405-808 nm), high flexibility, and durability, enabling it to function effectively even when bent.
- An all-spike electronic retina architecture, consisting of ASPs and artificial optical nerves (AONs), has been proposed, demonstrating the capability to segment images successfully, which is a significant step towards creating efficient spike-based neuromorphic vision systems.
In this work, the multilevel resistive random access memories (RRAMs) have been achieved by using the structure of Pt/MoO/Hf/MoO/Pt with four stable resistance states. The devices show good retention property of each state (>10s) and large memory window (>10). The simulation and experimental study reveal that the resistive switching mechanism is ascribed to combination of the conductive filament in the stack of MoO/Hf next to the top electrode and redox reaction at the interface of Hf/MoOnext to bottom electrode.
View Article and Find Full Text PDFIn order to address problems of safety and identification in gas detection, an optical detection method based on surface enhanced Raman scattering (SERS) was studied to detect ethanol vapor. A SERS device of silver nanoparticles modified polyvinylpyrrolidone (PVP) was realized by freeze-drying method. This SERS device was placed in a micro transparent cavity in order to inject ethanol vapor of 4% and obtain Raman signals by confocal Raman spectrometer.
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