Reconfigurable Mott electronics for homogeneous neuromorphic platform

Abstract

To simplify the fabrication process and increase the versatility of neuromorphic systems, the reconfiguration concept has attracted much attention. Here, we developed a novel electrochemical VO2 (EC-VO2) device, which can be reconfigured as synapses or LIF neurons. The ionic dynamic doping contributes to the resistance changes of VO2, which enables the reversible modulation of device states. The analog resistance switching and tunable LIF functions were both measured based on the same device to demonstrate the capacity of reconfiguration. Based on the reconfigurable EC-VO2, the simulated spiking neural network model exhibited excellent performances by using low-precision weights and tunable output neurons, whose final accuracy reached 91.92%.

Molecules structure and viscosity relationship of nematic liquid crystal and BPNN-QSAR model

“…低黏度、高响应速度的向列相液晶(nematic liquid crystal, NLC)材料一直是液晶光学应用领 域的核心研究课题, 除了平面显示, 其在波前校 正、相位延迟、调谐滤波、强度调制等领域 [1][2][3][4] , 都 具有高速应用的迫切需求. 随着现代信息和无线通 信技术的发展, NLC作为电控调谐的关键材料用 于微波相控阵移相器、可重构天线、反射阵列、偏 振器等可调谐微波通讯器件 [5][6][7][8] , 以实现5G、6G、 卫星通信等对微波器件小型轻量, 宽相位调制, 低 工作电压、信息高速传输的工作要求 [9] .…”