Abstract:
Carbon quantum dots (CQDs) and their composites with the conducting polymer PEDOT: PSS were obtained by the hydrothermal method from glucose, and their electrical properties were investigated in the temperature range 77–280 K. CQDs have a globular structure with globule sizes of $\sim$ 50 nm. The dependences of the resistivity on temperature, $\rho(T)$, have been obtained for the films of CQDs, PEDOT:PSS-CQDs and PEDOT: PSS, which have a weak activation character. It was found that the $\rho$ values of the CQD films are several orders of magnitude higher than the $\rho$ values of the PEDOT: PSS films. It has been shown that with an increase in the content of CQDs in the PEDOT:PSS-CQDs composites, the $\rho(T)$ dependences exhibit a transition from high activation energies ($\sim$ 17–18 meV), characteristic of pure PEDOT: PSS, to lower values ($\sim$ 10 meV) observed in CQD films. The mechanism of transport of charge carriers in the investigated materials is considered.
Citation:
G. V. Nenashev, M. S. Istomina, I. P. Shcherbakov, A. V. Shvidchenko, V. N. Petrov, A. N. Aleshin, “Composite films based on carbon quantum dots in a matrix of PEDOT:PSS conductive polymer”, Fizika Tverdogo Tela, 63:8 (2021), 1183–1188; Phys. Solid State, 63:8 (2021), 1276–1282
\Bibitem{NenIstShc21}
\by G.~V.~Nenashev, M.~S.~Istomina, I.~P.~Shcherbakov, A.~V.~Shvidchenko, V.~N.~Petrov, A.~N.~Aleshin
\paper Composite films based on carbon quantum dots in a matrix of PEDOT:PSS conductive polymer
\jour Fizika Tverdogo Tela
\yr 2021
\vol 63
\issue 8
\pages 1183--1188
\mathnet{http://mi.mathnet.ru/ftt8082}
\crossref{https://doi.org/10.21883/FTT.2021.08.51176.090}
\elib{https://elibrary.ru/item.asp?id=46345453}
\transl
\jour Phys. Solid State
\yr 2021
\vol 63
\issue 8
\pages 1276--1282
\crossref{https://doi.org/10.1134/S1063783421080229}
Linking options:
https://www.mathnet.ru/eng/ftt8082
https://www.mathnet.ru/eng/ftt/v63/i8/p1183
This publication is cited in the following 5 articles:
Dinh Cung Tien Nguyen, Bo-Seok Kim, Geun-Hyeong Oh, Van-Phu Vu, Sejung Kim, Soo-Hyoung Lee, “Incorporation of carbon quantum dots with PEDOT:PSS for high-performance inverted organic solar cells”, Synthetic Metals, 298 (2023), 117430
Grigorii V. Nenashev, Roman S. Kryukov, Maria S. Istomina, Petr A. Aleshin, Igor P. Shcherbakov, Vasily N. Petrov, Vyacheslav A. Moshnikov, Andrey N. Aleshin, “Carbon quantum dots: organic–inorganic perovskite composites for optoelectronic applications”, J Mater Sci: Mater Electron, 34:31 (2023)
Roman S. Kryukov, Maria S. Istomina, Grigoriy V. Nenashev, Elena V. Podkovyrina, Andrey N. Aleshin, 2022 Conference of Russian Young Researchers in Electrical and Electronic Engineering (ElConRus), 2022, 978
Xiaoqi Lan, Yeye Wang, Xiao Chen, Peipei Liu, Congcong Liu, Jingkun Xu, Cheng Liu, Fengxing Jiang, “Dual-action carbon quantum dots with light assist in enhancing the thermoelectric performance of polymers”, J. Mater. Chem. C, 10:42 (2022), 15906
Grigorii V. Nenashev, Maria S. Istomina, Roman S. Kryukov, Valeriy M. Kondratev, Igor P. Shcherbakov, Vasily N. Petrov, Vyacheslav A. Moshnikov, Andrey N. Aleshin, “Effect of Carbon Dots Concentration on Electrical and Optical Properties of Their Composites with a Conducting Polymer”, Molecules, 27:22 (2022), 8000