Analysis of phase composition of carbon films doped by tungsten by Raman spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F20%3A43958784" target="_blank" >RIV/49777513:23520/20:43958784 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Analysis of phase composition of carbon films doped by tungsten by Raman spectroscopy
Original language description
The aim of the project was analysis of phase composition of 15 carbon films doped by tungsten (different preparation conditions, different corrosion conditions after the deposition, different doping levels) deposited on steel substrates with or without titanium interlayer. The project is related to activities of the industrial partner in the field of fuel cells. The measurements were performed by Raman spectroscopy using two complementary excitation lasers (325 and 532 nm) and in a wide range of vibrational frequencies (50–2000 1/cm) and followed by interpretation based on the available literature. The quantities and phenomena of interest included (i) sp3/sp2 ratio of carbon (which of the films are "tetrahedral amorphous" and which are not), (ii) changes due to the corrosion, (iii) role of W (when does it form the WC phase and when not) and (iv) substrate oxidation (TiO2 instead of Ti).
Czech name
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Czech description
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Publication year
2020
Confidentiality
C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

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