Charge transport mechanism and trap origin in methyl methacrylate copolymer with thioxanthenone side groups

Charge transport mechanism and trap origin in methyl methacrylate copolymer with thioxanthenone side groups Full article

Journal

Chemical Physics Letters
ISSN: 0009-2614 , E-ISSN: 1873-4448

Output data

Year: 2024, Volume: 840, Article number : 141140, Pages count : 4 DOI: 10.1016/j.cplett.2024.141140

Tags

Organic polymers; Methyl methacrylate; Thioxanthenone; Spectroelectrochemistry; Electron trap; Charge transport

Authors

Gismatulin Andrei A. ¹ , Odintsov Danila S. ² , Shundrina Inna K. ² , Os'kina Irina A. ² , Azarov Ivan A. ¹ , Shundrin Leonid A. ² , Gritsenko Vladimir A. ^1,3

Affiliations

1	Rzhanov Institute of Semiconductor Physics SB RAS, 13 Lavrentiev Ave., 630090 Novosibirsk, Russia
2	N.N. Vorozhtsov Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Acad. Lavrentiev Avenue, 630090 Novosibirsk, Russia
3	Novosibirsk State Technical University, 20 Prospekt K. Marksa, 630073 Novosibirsk, Russia

Funding (1)

Российский Научный Фонд

22-13-00108

Highlights • Charge transport mechanism in copolymer with thioxanthenone side groups is studied. • Thermal (Wt = 0.9 eV) and optical (Wopt = 1.8 eV) ionization trap energies were found. • Spectroelectrochemistry and electrophysics are verified independently the trap origin. Abstract The transverse charge transport mechanism in a specially synthesized novel methyl methacrylate copolymer containing 2 % electron-accepting 9H-thioxanthene-9-one side groups (poly(MMA-co-ThS)) has been studied experimentally and theoretically. These side groups are shown to be deep electron traps. The charge transport in poly(MMA-co-ThS) is governed by the model of phonon-assisted tunneling between traps. The optical ionization trap energy (Wopt = 1.8 eV), independently determined by a reduction spectroelectrochemical method, confirms the validity of the phonon-assisted tunneling model used to describe charge transport in organic dielectrics with high content of electron traps.

Gismatulin A.A. , Odintsov D.S. , Shundrina I.K. , Os'kina I.A. , Azarov I.A. , Shundrin L.A. , Gritsenko V.A.
Charge transport mechanism and trap origin in methyl methacrylate copolymer with thioxanthenone side groups
Chemical Physics Letters. 2024. V.840. 141140 :1-4. DOI: 10.1016/j.cplett.2024.141140 WOS Scopus OpenAlex

Submitted:	Nov 8, 2023
Accepted:	Feb 13, 2024
Published online:	Feb 17, 2024
Published print:	Apr 1, 2024

Web of science:	WOS:001187870100001
Scopus:	2-s2.0-85185551624
OpenAlex:	W4391913622

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Web of science	2