Stretchable Ag2S–MXene Photodetector Designed for Enhanced Electrical Durability and High Sensitivity

In this work, we present a facile and straightforward approach for fabricating highly stretchable photodetectors based on Ag₂S and Ti₃C₂T_x MXene hybrid materials. These devices exhibit exceptional mechanical resilience, maintaining stable electrical and optical performance even after 10 000 cycles of 30% strain. The incorporation of MXene not only enhances the device's electrical durability but also ensures the retention of conductivity under significant mechanical deformation, positioning MXene as a critical material for the advancement of flexible electronics. These devices demonstrate strong photoresponses across a broad wavelength range, from visible to infrared, confirming their potential for use in flexible and stretchable optoelectronic applications. This study highlights the advantage of utilizing MXene in stretchable electronics and offers a promising route for developing durable, flexible devices for next-generation wearable technologies.