Diamond-coated ATR prism for infrared absorption spectroscopy of surface-modified diamond nanoparticles

0399386 - FZÚ 2014 RIV NL eng J - Journal Article
Remeš, Zdeněk - Kozak, Halyna - Rezek, Bohuslav - Ukraintsev, Egor - Babchenko, Oleg - Kromka, Alexander - Girard, H.A. - Arnault, J.-C. - Bergonzo, P.
Diamond-coated ATR prism for infrared absorption spectroscopy of surface-modified diamond nanoparticles.
Applied Surface Science. Roč. 270, APR (2013), s. 411-417. ISSN 0169-4332. E-ISSN 1873-5584
R&D Projects: GA ČR GAP108/12/0910; GA ČR GPP205/12/P331; GA MŠMT LH12236; GA MŠMT LH12186
Institutional support: RVO:68378271
Keywords : ATR FTIR * CVD * hydrogenation * microwave * nanocrystalline diamond * nanopowder
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.538, year: 2013

Linear antenna microwave chemical vapor deposition process was used to homogeneously coat a 7 cm long silicon prism by 85 nm thin nanocrystalline diamond (NCD) layer. To show the advantages of the NCD-coated prism for attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) of nanoparticles, we apply diamond nanoparticles (DNPs) of 5 nm nominal size with various surface modifications by a drop-casting of their methanol dispersions. ATR-FTIR spectra of as-received, air-annealed, plasma-oxidized, and plasma-hydrogenated DNPs were measured in the 4000-1500 cm-1 spectral range. The spectra show high spectral resolution, high sensitivity to specific DNP surface moieties, and repeatability. The NCD coating provides mechanical protection against scratching and chemical stability of the surface.
Permanent Link: http://hdl.handle.net/11104/0226685