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Matej Uhliar, Jan Truksa, Katsiaryna Arkhiptsava, Ivan Dědek, Vojtěch Kupka, Vladimír Lukeš, Jozef Krajčovič
Original Title
Electron acceptors as a powerful tool for the modulation of polythiophene electron structure
Type
journal article in Scopus
Language
English
Original Abstract
This work presents the synthesis of novel nitrated thiophene trimer and polymer. The prepared materials exhibit good thermal and chemical stability. In comparison with unsubstituted terthiophene, the substitution of an alkyl chain and chromophoric nitro groups caused the appearance of multiple absorption bands, likely due to the presence of different conformations. The experimental HOMO and LUMO levels were −6.14 eV (−3.23 eV) and −5.99 eV (−3.55 eV) for the trimer and polymer, respectively. The experimental properties were interpreted using the theoretical predictions performed for model 17 unsubstituted and 14 substituted model thiophene-aromatic ring-thiophene trimers, as well as oligothiophenes. Comparing with the expensive fluorinated derivatives, the nitrated oligothiophenes can represent a synthetically cheaper alternative material with specific electronic structure useable in construction of n-type organic semiconductors.
Keywords
Nitro group; Cyano substitution; Fluorination; Spectroscopy; Oligomers; Cyclic voltammetry
Authors
Released
24. 10. 2024
Publisher
Elsevier Ltd.
ISBN
0032-3861
Periodical
Polymer
Year of study
312
Number
October 2024
State
United Kingdom of Great Britain and Northern Ireland
Pages count
11
URL
https://www.sciencedirect.com/science/article/pii/S0032386124009728?utm_campaign=STMJ_219742_AUTH_SERV_PA&utm_medium=email&utm_acid=136284985&SIS_ID=&dgcid=STMJ_219742_AUTH_SERV_PA&CMX_ID=&utm_in=DM509933&utm_source=AC_
BibTex
@article{BUT189758, author="Jan {Truksa} and Jozef {Krajčovič} and Katsiaryna {Arkhiptsava}", title="Electron acceptors as a powerful tool for the modulation of polythiophene electron structure", journal="Polymer", year="2024", volume="312", number="October 2024", pages="11", doi="10.1016/j.polymer.2024.127636", issn="0032-3861", url="https://www.sciencedirect.com/science/article/pii/S0032386124009728?utm_campaign=STMJ_219742_AUTH_SERV_PA&utm_medium=email&utm_acid=136284985&SIS_ID=&dgcid=STMJ_219742_AUTH_SERV_PA&CMX_ID=&utm_in=DM509933&utm_source=AC_" }