The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

2023年9月5日 〜 2023年10月31日
Nagoya Congress Center

[PS-7-02] TIPS-Pentacene Organic Field-Effect Transistor for Simulation of Optoelectronic Neuromorphic

○Tianyang Feng1, Qingxuan Li2, Xuemeng Hu3, Yafen Yang4, Hang Xu5, Lin Chen6 (1. Univ.of Fudan (China), 2. Univ.of Fudan (China), 3. Univ.of Fudan (China), 4. Univ.of Fudan (China), 5. Univ.of Fudan (China), 6. Univ.of Fudan (China))

We propose an organic photoelectric synaptic transistor based on 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-Pentacene). The device has a memory window greater than 20 V and current on/off ratio of 106. Synaptic behavior transition is exhibited from short-term plasticity (STP) to long-term plasticity (LTP) under photoelectric pulse modulation, icluding paired-pulse facilitation (PPF), spike time dependent plasticity (STDP), spike number dependent plasticity (SNDP) and optical enhancement/electrical inhibition. In addition, we simulate the learning and adaptation process of the synaptic device after long-term light stimulation, and recognize visual information by perceiving light pulses in different time domains.