Open AccessPhoto-electrical response of nanocomposites from single-walled carbon nanotubes incorporated in tris(keto-hydrozone) discotic mesogen
Author(s) -
Georgi B. Hadjichristov,
Ginka Exner,
Yordan G. Marinov,
Todor E. Vlakhov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1762/1/012011
Subject(s) - carbon nanotube , materials science , nanocomposite , mesogen , discotic liquid crystal , phase (matter) , composite material , chemical engineering , nanotechnology , liquid crystal , optoelectronics , polymer , liquid crystalline , organic chemistry , chemistry , engineering
We report an experimental study on photo-electrical response of new nanocomposites produced from discotic mesogen LTTH-6 (possessing columnar liquid-crystalline phase) and single-walled carbon nanotubes (SWCNTs) with diameter ∼ 1.5 nm. The SWCNTs were incorporated in LTTH-6 at concentration of 1 wt.%. Thin layers of SWCNTs/LTTH-6 nanocomposites were formed with a thickness of 3 μm. The light-induced change in electrical conductivity of these layers was ascertained at room temperature by current-voltage measurements, upon illumination with a low-intensity (∼ 1 mW/cm 2 ) continuous visible light. The effect of photoresponsivity of the glassy-like columnar phase of SWCNTs/LTTH-6 manifests the potential of such nanocomposites to be functional materials for applications in molecular electronics, sensorics and mechatronics.