New Quinoxaline-Containing Monomers for Narrow-Bandgap Polymers
- Authors: Keshtov M.L.1, Kuklin S.A.1, Konstantinov I.O.1, Godovskii D.Y.1, Zou Y.2, Ostapov I.E.3, Makhaeva E.E.3, Khokhlov A.R.1
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Affiliations:
- Nesmeyanov Institute of Organoelement Compounds
- Central South University
- Moscow State University
- Issue: Vol 482, No 1 (2018)
- Pages: 195-200
- Section: Chemical Technology
- URL: https://journals.rcsi.science/0012-5008/article/view/154284
- DOI: https://doi.org/10.1134/S001250081809001X
- ID: 154284
Cite item
Abstract
Two new fused quinoxaline-containing monomers—2,3-bis(9-(2-decyltetradecyl)-9H-carbazol-3-yl)dithieno[3,2-f:2'3'-h]quinoxaline (М1) and 2,5-di(nonadecan-3-yl)bis[1,3]thiazolo[4,5-a:5',4'-c]bisthieno[3,2-h:2',3'-j]phenazine (М2)—have been synthesized in high yields of 88 and 83% as promising building blocks of D-A polymers for photovoltaic applications. The optical bandgaps, found from the absorption edge, are 2.79 and 2.88 eV, respectively. The HOMO/LUMO energies of М1 and М2 are–5.83/–2.96 and–5.83/–2.98 eV, respectively. Both monomers have low-lying HOMO levels, which is favorable for a high open-circuit voltage and a high stability in air in the development of PSCs. The Egec values of monomers М1 and М2 are 2.87 and 2.85 eV and are consistent well with the optical bandgap (2.79 and 2.88 eV, respectively).
About the authors
M. L. Keshtov
Nesmeyanov Institute of Organoelement Compounds
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991
S. A. Kuklin
Nesmeyanov Institute of Organoelement Compounds
Author for correspondence.
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991
I. O. Konstantinov
Nesmeyanov Institute of Organoelement Compounds
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991
D. Yu. Godovskii
Nesmeyanov Institute of Organoelement Compounds
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991
Y. Zou
Central South University
Email: ineos-50@mail.ru
China, Changsha
I. E. Ostapov
Moscow State University
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991
E. E. Makhaeva
Moscow State University
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991
A. R. Khokhlov
Nesmeyanov Institute of Organoelement Compounds
Email: ineos-50@mail.ru
Russian Federation, Moscow, 119991