Novel Perspective Coatings for the Optoelectronic Elements: Features of the Carbon Nanotubes to Modify the Surface Relief of BaF2 Materials

Coatings

Dmitry Kvashnin¹  Natalia Kamanina²  Pavel Kuzhakov² 

[1] Emanuel Institute of Biochemical Physics RAS, 4 Kosigina st., 119334 Moscow, Russia;Lab for Photophysics of Media with Nanoobjects at Vavilov State Optical Institute, Kadetskaya Liniya V.O., dom 5/2, 199053 St.-Petersburg, Russia;

关键词: inorganic materials;    barium fluoride crystal;    carbon nanotubes;    interface;    laser–matter interaction;   

DOI  :  10.3390/coatings10070661

来源: DOAJ

【 摘 要 】

It is well known that the optimization of the basic properties of materials is related not only to changes of the substance of the material itself, but can also predict the change of their surface. In this regards, the search for, and study of, new nanostructured coatings based on the laser deposition method becomes extremely promising. Here, we used a laser-oriented deposition technique in order to place carbon nanotubes in a vertical position on the BaF₂ surface to modify it. Such modification affected the increasing material transparency, connected with a decrease of the reflection via change the Fresnel losses; hydrophobicity and microhardness as well. Characteristics of the obtained material were studied via spectral analysis, AFM-method, wetting-angle measurements, microhardness estimations to support the possible covalent bonding between the carbon atoms and the interface materials atoms. Moreover, the quantum–chemical calculations completely confirmed the experimental results of the changes of electronic properties of BaF₂ substrate after deposition of the CNTs. As the results novel optimized structure based on BaF₂ is presented to be used in general optoelectronics, cosmos and laser technique as well.

【 授权许可】

Unknown