Strain-insensitive viscoelastic perovskite film for intrinsically stretchable neuromorphic vision-adaptive transistors

Strain-insensitive viscoelastic perovskite film for intrinsically stretchable neuromorphic vision-adaptive transistors

10 April 2024 | Chengyu Wang, Yangshuang Bian, Kai Liu, Mingcong Qin, Fan Zhang, Mingliang Zhu, Wenkang Shi, Mingchao Shao, Shengcong Shang, Jiaxin Hong, Zhiheng Zhu, Zhiyuan Zhao, Yunqi Liu, Yunlong Guo
This paper presents a novel strain-insensitive viscoelastic perovskite film for intrinsically stretchable neuromorphic vision-adaptive transistors (ISNVaTs). The film, composed of CsPbBr3 quantum dots and SEBS elastomer, is assembled into quasi-continuous microsphere morphologies, ensuring intrinsic stretchability and retentive photosensitivity. The ISNVaTs exhibit trichromatic photodaptation, rapid adaptive speed (<150 s), ultra-low energy consumption (15 aJ), and a high paired-pulse facilitation index (270%). These properties make the ISNVaTs suitable for high-resolution adaptive imaging, comparable to human eyes, and promising for applications in visual prosthetics, bio-inspired robots, and unmanned intelligence. The device's ability to maintain its performance under mechanical strains up to 100% and its fast adaptation speed under various light intensities and gate voltages demonstrate its potential for advanced intelligent neuromorphic electronics.This paper presents a novel strain-insensitive viscoelastic perovskite film for intrinsically stretchable neuromorphic vision-adaptive transistors (ISNVaTs). The film, composed of CsPbBr3 quantum dots and SEBS elastomer, is assembled into quasi-continuous microsphere morphologies, ensuring intrinsic stretchability and retentive photosensitivity. The ISNVaTs exhibit trichromatic photodaptation, rapid adaptive speed (<150 s), ultra-low energy consumption (15 aJ), and a high paired-pulse facilitation index (270%). These properties make the ISNVaTs suitable for high-resolution adaptive imaging, comparable to human eyes, and promising for applications in visual prosthetics, bio-inspired robots, and unmanned intelligence. The device's ability to maintain its performance under mechanical strains up to 100% and its fast adaptation speed under various light intensities and gate voltages demonstrate its potential for advanced intelligent neuromorphic electronics.
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[slides and audio] Strain-insensitive viscoelastic perovskite film for intrinsically stretchable neuromorphic vision-adaptive transistors