Inkjet Printing and Hydrogen-Assisted Annealing of Mo _{1– <i>x</i>} Nb _<i>x</i> S ₂ Alloy Films for Ultrawide-Range Flexible Temperature Sensors

With the rapid advancement of Industry 4.0, aerospace, energy, and chemical engineering, temperature sensors are facing technical demands in high-temperature environments. Conventional temperature sensing materials, limited by their performance under extreme conditions, struggle to meet the requirements of modern industries. To address this challenge, this study proposes a fabrication process combining inkjet printing with hydrogen-assisted thermal annealing, leveraging the unique electronic structure and tunable physicochemical properties of molybdenum–niobium disulfide (Mo1–xNbxS2). This method enables the controllable preparation of Mo1–xNbxS2 alloy thin films, where inkjet printing facilitates low-cost, patterned fabrication and hydrogen annealing modulates crystallinity and defect density. The Mo1–xNbxS2-based flexible temperature sensor exhibits outstanding sensing performance, including a reliable temperature response across a broad range (10–1000 K) and exceptional stability after a 1000 cyclic thermal test. This work not only provides a promising solution for temperature monitoring in extreme environments but also opens new avenues for the development of next-generation flexible electronics.