Fabrication of diamond-coated germanium ATR prisms for IR-spectroscopy

0462575 - FZÚ 2017 RIV NL eng J - Journal Article
Babchenko, Oleg - Kozak, Halyna - Ižák, Tibor - Stuchlík, Jiří - Remeš, Zdeněk - Rezek, Bohuslav - Kromka, Alexander
Fabrication of diamond-coated germanium ATR prisms for IR-spectroscopy.
Vibrational Spectroscopy. Roč. 87, May (2016), 67-73. ISSN 0924-2031. E-ISSN 1873-3697
R&D Projects: GA ČR GA15-01687S
Institutional support: RVO:68378271
Keywords : diamond * low temperature growth * linear antenna microwave plasma * germanium * SEM * FTIR
Subject RIV: JI - Composite Materials
Impact factor: 1.740, year: 2016

Here, we compare low temperature (250–400oC) diamond growth on Ge substrates and attenuated total reflection prisms, using a chemical vapor deposition in linear antenna microwave plasma and focused microwave plasma reactors. We show that by employing a thin amorphous silicon interlayer (20–30 nm), a homogeneous diamond coating with no degradation of the Ge surface is achieved. The infrared spectroscopy of proteins adsorbed on the diamond coated Ge prism demonstrates usability and advantages in comparison with bare Si or Ge prisms and even with the diamond-coated Si prism.

Permanent Link: http://hdl.handle.net/11104/0262003