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

0399386 - FZÚ 2014 RIV NL eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR GAP108/12/0910; GA ČR GPP205/12/P331; GA MŠMT LH12236; GA MŠMT LH12186
Institucionální podpora: RVO:68378271
Klíčová slova: ATR FTIR * CVD * hydrogenation * microwave * nanocrystalline diamond * nanopowder
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.538, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0226685