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

Kaiwei Li; Nan Zhang; Ting Zhang; Zhe Wang; Ming Chen; Tingting Wu; Shaoyang Ma; Mengying Zhang; Jing Zhang; Dinish U. S.; Perry Ping Shum; Malini Olivo; Lei Wei

doi:10.1039/C8TC00884A

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

Kaiwei Li,‡^a Nan Zhang,‡^ab Ting Zhang,^a Zhe Wang,^a Ming Chen,^a Tingting Wu,^ab Shaoyang Ma,^a Mengying Zhang,^ab Jing Zhang,^ab Dinish U. S.,^c Perry Ping Shum,^ab Malini Olivo^c and Lei Wei

*^ab

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* Corresponding authors

^a School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore
E-mail: wei.lei@ntu.edu.sg

^b CINTRA CNRS/NTU/THALES, UMI3288, Research Techno Plaza, 50 Nanyang Drive, Singapore

^c Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A*STAR), Singapore

Abstract

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.

Journal of Materials Chemistry C

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

Abstract

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

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