Chaotic Organic Crystal Phosphorescent Patterns for Physical Unclonable Functions (Adv. Mater. 44/2021)

Abstract

Security Labeling In article 2102542, Dong Hyuk Park, Wook Park, Sunkook Kim, and co-workers demonstrate chaotic phosphorescent patterns based on an organic crystal and MoS2 heterostructure for physical unclonable functions (PUFs). Phosphorescent-pattern-based PUFs achieve superior microscale randomness and no-cloning code with ease of fabrication. In image analysis, an encoding capacity as a single PUF domain of more than 1017 is achieved on a 25 μm-cubic MoS2 sample.