Affiliation:
1. College of Physics, Qingdao University, Qingdao 266071, China
2. College of Microtechnology & Nanotechnology, Qingdao University, Qingdao 266071, China
Abstract
Electrolyte-gated synaptic transistors are promising for artificial neural morphological devices. However, few literatures have been reported regarding the manufacturing of electrolyte-gated synaptic transistors with low cost and biocompatible components. Here, the fully transparent synaptic transistors based on water-induced In2O3 thin films have been integrated by sol–gel method at low temperature, and lactose dissolved in citric acid solution is used as the gate electrolyte. The migration of the ions at the interface plays a crucial role in the potentiation and depression of the synaptic weight. In this work, the biological synaptic functions, including excitatory postsynaptic current, paired-pulse facilitation, high-pass filtering characteristics, short-term memory, and long-term memory, are mimicked. Meanwhile, based on the potentiation/depression behaviors of the synaptic transistor, a three-layer artificial neural network is applied for pattern recognition, and the recognition accuracy is as high as 94.6%. This study offers a possibility to realize fully transparent synaptic devices with biocompatible components at low temperature.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Natural Science Foundation of Shandong Province
Subject
Physics and Astronomy (miscellaneous)
Cited by
3 articles.
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