Recently, undergraduate student Ren Yi from research scientist Zhou Ye’s group at IAS published a paper named “Phosphorene nano-heterostructure based memristor with broadband response synaptic plasticity” as back cover in JMCC. Associate researcher Hu Liang from College of Optoeletronic Engineering of Shenzhen University and undergraduate student Mao Jingyu from IAS also devoted themselves in this paper. The corresponding author includes research scientist Zhou Ye from IAS, Professor Zeng Yujia from College of Optoeletronic Engineering and associate professor Han Suting from College of Electronic Science and Technology and Shenzhen University is the communications unit.
Based on the highly connected biological neuromorphic system that can drive large amounts of information, the optically-responsive electronic synapse is expected to overcome the von Neumann bottleneck of traditional computing. This work developed a optically-responsive electronic synapse of zinc oxide-black phosphorus nanoparticles based on in-situ heterojunction of solution method and studied the oxygen of the memristor using in-situ Kelvin probe force microscopy and conductive atomic force microscopy. In addition, this work simulated various biological synaptic functions, including enhancement and suppression under positive and negative pulse sequences, paired pulse acceleration, discharge rate dependent plasticity, discharge time dependent plasticity, and transition from short-term plasticity to long-term plasticity. The p-n junctions with good internal arrangement of zinc oxide-black phosphorus nanoparticles caused multi-wavelength response and rapid separation of photo-excitons, which ultimately realized real-time regulation of memristor properties and synaptic plasticity. The experimental result showed that zinc oxide-black phosphorus nanoparticles may become an important component of light-stimulated biosynaptic behavior, which would be of great significance for the further development of artificial light-triggered nervous system.
This project has been funded by the National Natural Science Foundation of China, Department of Science and Technology of Guangdong Province, Shenzhen Science and Technology Commission, academic cooperation study between Shenzhen University and National Taipei University of Technology.
Link：http://pubs.rsc.org/en/content/articlelanding/2018/tc/c8tc03089h#!divAbstract
The Left：Ren Yi；
The Right：Mechanism explanation of photoresponsive electronic synapses and electrical atomic force microscopy.
