Chemical and Laser Structuring of Carbon Nanotubes Arrays for Use in Biomedical Devices

• Published in: 2019 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus) pp. 2299 - 2303
• Main Authors: Kuksin, Artem V., Polokhin, Alexander A., Ryazanov, Roman M., Kitsyuk, Eugeny P., Gerasimenko, Alexander Y.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.01.2019
• Subjects: BaO processing; biosensor; Carbon nanotubes; carbon nanotubes arrays; cathode; Chemical lasers; emission; laser; Laser beams; Radiation effects; structuring; Substrates; Surface emitting lasers
• ISSN: 2376-6565
• DOI: 10.1109/EIConRus.2019.8657010

Structuring effect of carbon nanotubes (CNT) arrays, processed with BaO and irradiated with nanosecond laser pulses was demonstrated. CNT arrays were synthesized by catalytic plasma-induced deposition from a gas phase on a silicon substrate. Effects of CNTs alignment, singling, splicing of nanotubes in a single structure were demonstrated. CNTs processing with BaO, laser and complex structuring were carried out. Chemical structuring of CNT arrays was performed by coating samples with 0.03 mg/ml aqueous Ba(NO3)2 solution. Laser structuring of CNTs at a given area using impulse nanosecond Nd-YAG laser with radiation power 0.7 W, energy density 3.8 J/cm 2 is obtained. Raman spectroscopy was performed in order to show the small amount of defected nanotubes after laser irradiation. Electron emission of processed arrays was investigated. Application area of such materials includes: creating CNT-based biosensors, x-ray tubes for biomedical use, cathodes for electron emission, topological elements for medical devices.