Applied Physics A

, Volume 96, Issue 2, pp 453–458

Morphology and size dependence of silver microstructures in fatty salts-assisted multiphoton photoreduction microfabrication

Authors

  • Yao-Yu Cao
    • Laboratory of Organic NanoPhotonics and Key Laboratory of Photochemical Conversion and Functional Materials, Technical Institute of Physics and ChemistryChinese Academy of Sciences
    • Graduate School of the Chinese Academy of Sciences
  • Xian-Zi Dong
    • Laboratory of Organic NanoPhotonics and Key Laboratory of Photochemical Conversion and Functional Materials, Technical Institute of Physics and ChemistryChinese Academy of Sciences
    • Graduate School of the Chinese Academy of Sciences
  • Nobuyuki Takeyasu
    • Nanophotonics LaboratoryRIKEN (The Institute of Physical and Chemical Research)
  • Takuo Tanaka
    • Metamaterials LaboratoryRIKEN (The Institute of Physical and Chemical Research)
  • Zhen-Sheng Zhao
    • Laboratory of Organic NanoPhotonics and Key Laboratory of Photochemical Conversion and Functional Materials, Technical Institute of Physics and ChemistryChinese Academy of Sciences
    • Laboratory of Organic NanoPhotonics and Key Laboratory of Photochemical Conversion and Functional Materials, Technical Institute of Physics and ChemistryChinese Academy of Sciences
  • Satoshi Kawata
    • Nanophotonics LaboratoryRIKEN (The Institute of Physical and Chemical Research)
    • Department of Applied Physics, Graduate School of EngineeringOsaka University
Article

DOI: 10.1007/s00339-009-5270-7

Cite this article as:
Cao, Y., Dong, X., Takeyasu, N. et al. Appl. Phys. A (2009) 96: 453. doi:10.1007/s00339-009-5270-7

Abstract

The morphology and size dependence of silver microstructures in a novel microfabrication process, fatty salts-assisted multiphoton photoreduction (MPR), were investigated by using the fatty salts with different carbon chain lengths (Cn: n=4,5,7,9) under varied powers and irradiation times of a femtosecond near-infrared laser with the wavelength of 800 nm. Not only the feature size of the silver structures was reduced but also the surface smoothness was improved by increasing the chain length of the fatty salts. The highest resolution of a silver line was obtained to be 285 nm, which exceeded the diffraction limit. The fatty salts-assisted MPR microfabrication approach would provide an efficient protocol for fabricating metallic micro/nanostructures with fine morphology and size and could play an important role in the fabrication of the metallic micro/nanostructures for applications in photonics and electronics as well as in sensors.

PACS

82.50.Pt81.07.-b81.15.Fg81.16.Rf61.46.Df

Copyright information

© Springer-Verlag 2009