Nick Mikhalev, Chris Muratore, University of Dayton, Dayton, OH
This work presents scalable, flexible, two-dimensional (2D) electronic sensor arrays for real-time detection of hazardous vapors relevant to industrial and first-responder environments. The devices, fabricated via laser patterning and photonic annealing of MoS_₂ thin films on flexible glass substrates, exhibit sub-ppm detection limits for toxic gases with widespread occupational exposure risk. Integration of selective polymeric coatings enhances analyte specificity, while Bluetooth-enabled modules allow wireless data transmission and networked exposure tracking. Process optimization achieved near-100 % device yield and high response uniformity across mass-produced lots, representing a major advance toward cost-effective (<$0.20 per array) wearable inhalation-hazard monitoring. The technology demonstrates a clear path toward fieldable systems capable of identifying and profiling toxic exposures in real time, enabling improved worker safety, exposure documentation, and process-linked mitigation strategies across diverse industrial sectors.