Work

Influence of Carbon Nanotube Hydrodynamic Radius on Electrical Conductivity in Photoresists

Year: 2025

Type: conference-paper

Abstract: Tuning the electrical properties of biocompatible materials with minimal amounts of nanofiller presents a significant challenge in neuroimplant development. This study investigates the influence of single-walled carbon nanotube (SWCNT) agglomerate size on the electrical conductivity of a bioinspired biopolymer composite. The composites were fabricated via photolithography. We analyzed the effect of ultrasonic homogenization on the size distribution of SWCNT bundles. Our results demonstrate that the degree of nanotube dispersion is critical for determining electrical conductivity. The highest conductivity was achieved with an average bundle size of 95 µm and a defect level of no more than 0.143, as measured by the ID/IG+ band ratio using Raman spectroscopy. We attribute this to the formation of an interconnected percolation network within the biopolymer matrix. These findings demonstrate a viable approach for controlling the conductive properties of bioinspired composites.

DOI: 10.3390/proceedings2025132004

Authors: Mikhail S. Savelyev, Ekaterina P. Otsupko, Victoria V. Suchkova, Kristina D. Popovich, Pavel N. Vasilevsky, Sergey V. Selishchev, Alexander Yu. Gerasimenko

Institutions: Sechenov University, National Research University of Electronic Technology

Language: English

Topic: Carbon Nanotubes in Composites

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Funder: Ministry of Education and Science of the Russian Federation

OpenAlex ID: W7118196673

FWCI:

Cites: 13

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