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Title: Synthesis and characterization of dithienobenzothiadiazole-based donor-acceptor conjugated polymers for organic solar cell applications
Authors: Efrem, Amsalu
Lim, Chia-Juan
Lu, Yong
Ng, Siu-Choon
Keywords: DRNTU::Science::Biological sciences
DRNTU::Science::Medicine::Biomedical engineering
Issue Date: 2014
Source: Efrem, A., Lim, C.- J., Lu, Y., & Ng, S.- C. (2014). Synthesis and characterization of dithienobenzothiadiazole-based donor–acceptor conjugated polymers for organic solar cell applications. Tetrahedron letters, 55(35), 4849-4852.
Series/Report no.: Tetrahedron letters
Abstract: New donor–acceptor conjugated polymers (P1 and P2) containing a fused-ring dithienobenzothiadiazole (DT-BTD building block) were synthesized by using the Stille copolymerization method. The synthesized polymers were characterized by 1H NMR, GPC, and elemental analysis. The optical band gaps of the polymers were found to be 1.86 and 1.9 eV, respectively, as calculated from their film onset absorption edge. Upon annealing both produced a distinct shoulder peak in their film absorption spectra. The electrochemical studies of P1 and P2 revealed that the HOMO and LUMO energy levels of the polymer were −5.3, −5.1 eV, and −3.4, −3.2 eV, respectively. The polymers are thermally stable up to 250–350 °C.
DOI: 10.1016/j.tetlet.2014.06.078
Rights: © 2014 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Tetrahedron Letters, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SBS Journal Articles
SCBE Journal Articles

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