Formation of ultra-flexible, conformal, and nano-patterned photonic surfaces via polymer cold-drawing

• Main Authors: Wang, Zhe, Li, Kaiwei, Zhang, Nan, Zhang, Ting, Chen, Ming, Wu, Tingting, Ma, Shaoyang, Zhang, Mengying, Zhang, Jing, U. S., Dinish, Shum, Perry Ping, Olivo, Malini, Wei, Lei
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Polymer Cold-drawing; DRNTU::Engineering::Electrical and electronic engineering; Nano-patterned Films
• Online Access: https://hdl.handle.net/10356/90135; http://hdl.handle.net/10220/48416
• Institution: Nanyang Technological University

We report a lithography-free method for large-area plasmonic nano-patterning on ultrathin plastic films through a polymer cold-drawing process. We further transfer the ultra-flexible nano-patterned films onto the curved surfaces of plant leaves and apples to work as conformal SERS sensors.