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- Title
Self-organized Polymer Wrinkles: A Lithography-free Pathway for Surface-enhanced Raman Scattering (SERS) Substrates.
- Authors
Stenberg, Henna; Matikainen, Antti; Daniel, Salman; Nuutinen, Tarmo; Stenberg, Petri; Honkanen, Seppo; Pakkanen, Tuula; Vahimaa, Pasi; Suvanto, Mika
- Abstract
Self-organized pattern formation is a phenomenon that can be used for nanoscale pattering of large surface areas in a cost-effective manner. We exploit the phenomenon and fabricate sub-micron polystyrene wrinkle structures and demonstrate that after being coated with silver, they can be used as surface-enhanced Raman spectroscopy (SERS) substrates. We show that the signal enhancement generated by the wrinkles is 8 times higher in comparison to a flat reference while the measurement repeatability is simultaneously improved (variation reduced from 30 to 13%). The results indicate that self-organization could be further utilized in cost-effective, large-scale production of SERS substrates.
- Subjects
RAMAN scattering; POLYMERS; LIGHT scattering; MACROMOLECULES; POLYSTYRENE
- Publication
Macromolecular Materials & Engineering, 2015, Vol 300, Issue 4, p386
- ISSN
1438-7492
- Publication type
Article
- DOI
10.1002/mame.201400391