Grazing angle reflectance spectroscopy of organic monolayers on nanocrystalline diamond films

0372439 - FZÚ 2012 RIV CH eng J - Journal Article
Remeš, Zdeněk - Kozak, Halyna - Babchenko, Oleg - Potocký, Štěpán - Ukraintsev, Egor - Rezek, Bohuslav - Kromka, Alexander
Grazing angle reflectance spectroscopy of organic monolayers on nanocrystalline diamond films.
Diamond and Related Materials. Roč. 20, č. 7 (2011), s. 882-885. ISSN 0925-9635. E-ISSN 1879-0062
R&D Projects: GA ČR(CZ) GAP108/11/0794; GA AV ČR KAN400100701; GA MŠMT LC510; GA AV ČR(CZ) IAAX00100902; GA ČR GAP204/10/0212
Institutional research plan: CEZ:AV0Z10100521
Keywords : nanocrystalline diamond * infrared spectroscopy * functionalization * grazing angle * brewster angle
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.913, year: 2011

The nanocrystalline diamond (NCD) layers were grown by the large area (linear plasma) MWCVD on polished silicon substrates with and without intermediate mirror-like metallic coatings. The optical reflectance and Raman spectroscopy in the ultraviolet, visible and near infrared region (UV–VIS–NIR) reveals the thickness and the optical quality of NCD layers. The modified grazing angle reflectance (GAR) spectroscopy is applied in the mid infrared region 800–4000/cm to detect the molecular vibrations (functional groups) at the functionalized NCD surface. The optical absorbance of functionalized NCD surface is evaluated from p-polarized reflectance spectra measured at Brewster angle of incidence (BAR) to eliminate the interference fringes. We report a significant enhancement of sensitivity of BAR using NCD growth on metal mirrors.
Permanent Link: http://hdl.handle.net/11104/0205755