Employing Sub-6 nm Rapid Self-Assembly Fluorinated Block Copolymeric Supramolecules at Low Temperature for Organic Synaptic Transistor Memories

作者：Tangjun Zhang, Zhenyu Yang, Tianyang Feng, Tao Liu, Xiaofei Qian, Hai Deng · 发表于：ACS Applied Materials & Interfaces · 年份：2025 · DOI：10.1021/acsami.5c03788 · 被引用次数：4 · 研究领域：Advanced Memory and Neural Computing、Conducting polymers and applications、Organic Electronics and Photovoltaics

As artificial synaptic transistor devices become increasingly important in simulating biological synaptic functions, it is crucial to design high-performance synaptic transistor memory using a facile and high-efficiency process. Herein, we demonstrate an organic synaptic transistor memory fabricated using poly(pentadecafluorooctyl methacrylate)- block -poly(4-vinylphenol) supramolecules with 1-aminopyrene (PPDFMA- b -(P4HS-APy)) as the polymer electret. The solution-processable PPDFMA- b -(P4HS-APy) can rapidly self-assemble into an ordered nanostructure with sub-6 nm domain size after annealing at a low temperature of 80 °C for only 10 min, which defines pyrene moieties into hydrophilic P4HS blocks surrounded by a hydrophobic and insulating PPDFMA matrix to form an effective electret. By optimizing the composition and tuning the nanostructure of the electret, a high-performance transistor device with a large memory window of 74 V, a high on/off current ratio of ∼10 5, and outstanding memory stability over 10 4 s was obtained. Additionally, a 6 × 6 synaptic transistor array was prepared, which exhibits good uniformity and can replicate versatile biological synaptic behaviors. Neuromorphic computing simulations constructed with the synaptic transistor reveal a high recognition accuracy of 91.6%. This study offers a strategy for preparing high-performance synaptic transistor devices using a facile and practical process.