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Chemicals, plastics and rubber industries

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Long-lived photoinduced charges in donor-acceptor anthraquinone-substituted thiophene copolymers

Article Abstract:

The photoinduced charge-transfer properties of a series of polyalkylthiophene copolymers, carrying anthraquinone substituents covalently linked to the conjugated backbone, are analyzed in the solid state by photoinduced absorption (PA) and light-induced electron spin resonance (LESR) spectroscopy. The results have showed that in these polymers, the number of acceptor substituents in the chain, easily tuned by chemical tailoring, plays a vital role in the photoexcitation scenario.

Author: Neugebauer, Helmut, Luzzati, Silvia, Catellani, Marinella, Sariciftci, N. Serdar, Segura, Jose L., Martin, Nazario, Scharber, Markus, Giacalone, Francesco
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
Analytical Laboratory Instrument Manufacturing, Analytical instruments, Photo-Electron Spectroscopy, Analysis, Optical properties, Electron spectroscopy, Photoluminescence, Structure

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Vibrational spectroscopy of pDTT3-a low band gap polymer based on dithienothiophene

Article Abstract:

The electrochemical redox processes of poly(dithieno[3,4-b:2E,2E-d]thiophene)(pDTT3) are reported based on the attenuated total reflection Fourier transform infrared studies. Vibrational spectroscopic studies are carried for this low band gap conjugated polymer with a polythiophene-like backbone, where an aromatic moiety is fused to each thiophene ring, in situ during electrochemical oxidation and reduction.

Author: Neugebauer, Helmut, Luzzati, Silvia, Catellani, Marinella, Sariciftci, N. Serdar, Cravino, Antonio
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
Methods, Polymers, Oxidation-reduction reaction, Oxidation reduction reactions, Chemical properties

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Subjects list: Spectra, Thiophene
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