A detachable interface for stable low-voltage stretchable transistor arrays and high-resolution X-ray imaging
Yangshuang Bian, Mingliang Zhu, Chengyu Wang, Kai Liu, Wenkang Shi, Zhiheng Zhu, Mingcong Qin, Fan Zhang, Zhiyuan Zhao, Hanlin Wang, Yunqi Liu, Yunlong Guo
Abstract
Abstract Challenges associated with stretchable optoelectronic devices, such as pixel size, power consumption and stability, severely brock their realization in high-resolution digital imaging. Herein, we develop a universal detachable interface technique that allows uniform, damage-free and reproducible integration of micropatterned stretchable electrodes for pixel-dense intrinsically stretchable organic transistor arrays. Benefiting from the ideal heterocontact and short channel length (2 μm) in our transistors, switching current ratio exceeding 10 6 , device density of 41,000 transistors/cm 2 , operational voltage down to 5 V and excellent stability are simultaneously achieved. The resultant stretchable transistor-based image sensors exhibit ultrasensitive X-ray detection and high-resolution imaging capability. A megapixel image is demonstrated, which is unprecedented for stretchable direct-conversion X-ray detectors. These results forge a bright future for the stretchable photonic integration toward next-generation visualization equipment.