Xihu Wu, Qiang He, Zhongliang Zhou, Teck Lip Dexter Tam, Cindy Tang, Ming Lin, Maximilian Moser, Sophie Griggs, Adam Marks, Shuai Chen, Jianwei Xu, Iain McCulloch, Wei Lin Leong
Organic electrochemical transistors (OECTs) are one of the promising building blocks to realize next-generation bioelectronics. To date, however, the performance and signal processing capabilities of these devices remain limited by their stability and speed. Herein, we demonstrate a stable and fast n-type organic electrochemical transistors based on a side-chain-free ladder polymer, poly(benzimidazoanthradiisoquinolinedione). The device demonstrated fast normalized transient speed of 0.56 ± 0.17 ms/um2 and excellent long-term stability in aqueous electrolytes, with no significant drop in its doping current after 50,000 successive doping/dedoping cycles and 2 months storage at ambient conditions...
March 26, 2024: Advanced Materials