Microstructured polymer‐based substrates with broadband absorption for surface‐enhanced Raman scattering | Zendy

Yang Ming | Zendy; Wu Qiang | Zendy; Qi Jiwei | Zendy; DrevensekOlenik Irena | Zendy; Chen Zhandong | Zendy; Pan Yusong | Zendy; Xu Jingjun | Zendy

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Microstructured polymer‐based substrates with broadband absorption for surface‐enhanced Raman scattering

Author(s) -

Yang Ming,

Wu Qiang,

Qi Jiwei,

DrevensekOlenik Irena,

Chen Zhandong,

Pan Yusong,

Xu Jingjun

Publication year - 2013

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.4403

Subject(s) - materials science , femtosecond , rhodamine 6g , raman scattering , polydimethylsiloxane , raman spectroscopy , absorption (acoustics) , laser , lithography , optoelectronics , silicon , soft lithography , optics , fabrication , nanotechnology , composite material , fluorescence , medicine , physics , alternative medicine , pathology

Large area (3 × 3 cm 2 ) substrates for surface‐enhanced Raman scattering were fabricated by combining femtosecond laser microstructuring and soft lithography techniques. The fabrication procedure is as follows: (i) femtosecond laser machining is used to create a silicon master copy, (ii) replicates from polydimethylsiloxane are made, and (iii) a 50‐nm‐thick gold film is deposited on the surface of the replicates. The resulting substrates exhibit strongly enhanced absorption in the spectral region of 350 ∼ 1000 nm and generate enhanced Raman signal with enhancement factor of the order of 10 7 for 10 ‐ 6 M rhodamine 6G. The main advantages of our substrates are low cost, large active area, and possibility for mass replication. Copyright © 2013 John Wiley & Sons, Ltd.

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