Issue 39, 2020

Synthesis and characterization of donor–acceptor semiconducting polymers containing 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole for organic solar cells

Abstract

In this study, new donor–acceptor (D–A) conjugated polymers based on 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole (EPDP) and 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (BTBP) or 4,7-bis(5-bromothiophen-2-yl)benzo[c][1,2,5]thiadiazole (BT) have been synthesized successfully via direct (hetero)arylation polymerization using Pd(OAc)2 and PCy3·HBF4 as a catalyst system. The obtained D–A conjugated polymers have been characterized via1H NMR, GPC, FTIR, DSC, XRD, PL and UV-Vis methods. Afterward, the D–A conjugated polymers have been applied for the fabrication of organic solar cells based on bulk-heterojunction (BHJ) structures.

Graphical abstract: Synthesis and characterization of donor–acceptor semiconducting polymers containing 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole for organic solar cells

Supplementary files

Article information

Article type
Paper
Submitted
24 May 2020
Accepted
01 Sep 2020
First published
09 Sep 2020

New J. Chem., 2020,44, 16900-16912

Synthesis and characterization of donor–acceptor semiconducting polymers containing 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole for organic solar cells

H. L. T. Mai, N. T. T. Truong, T. Q. Nguyen, B. K. Doan, D. H. Tran, L. T. Nguyen, W. Lee, J. W. Jung, M. H. Hoang, H. P. K. Huynh, C. D. Tran and H. T. Nguyen, New J. Chem., 2020, 44, 16900 DOI: 10.1039/D0NJ02616F

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