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- Title
Optical Properties of Polyimide Films Implanted with Ni Ions.
- Authors
Bumai, Yu.; Dolgikh, N.; Kharchenko, A.; Valeev, V.; Nuzhdin, V.; Khaibullin, R.; Nagim, F.; Lukashevich, M.; Odzhaev, V.
- Abstract
Transmission and refl ection spectra of polyimide fi lms 40-μm thick implanted with 40-keV Ni ions at fl uences 2.5·10-1.5·10 cm and ion-beam current density 4, 8, and 12 μA/cm were studied in the range 200-1100 nm. It was shown that the optical transmission coeffi cient decreased smoothly after implantation as a result of light absorption and scattering in the modifi ed polymer layer containing nano-sized inclusions of C and Ni. The appearance of a broad refl ection band in the range 700-1100 nm in spectra from the implanted polymer and the reverse side of the polymer was due to a high Ni content in the implanted layer. The refractive index of the modifi ed implanted polymer layer that varied in the range 1.25-2.32 at 620 nm depending on the fl uence was determined by modeling the passage of light through the bilayer modifi ed layer/polymer matrix taking into account multiple refl ections at the interfaces.
- Subjects
POLYIMIDE films; NICKEL; ION beams; REFRACTIVE index; POLYMERS; LIGHT transmission; COEFFICIENTS (Statistics)
- Publication
Journal of Applied Spectroscopy, 2014, Vol 81, Issue 2, p188
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-014-9908-7