Synthesis of poly(2,5-Thienylene Vinylene) and its derivatives: Low band gap materials for photovoltaics

• Published in: Thin solid films Vol. 516; no. 12; pp. 3978 - 3988
• Main Authors: Banishoeib, F., Henckens, A., Fourier, S., Vanhooyland, G., Breselge, M., Manca, J., Cleij, T.J., Lutsen, L., Vanderzande, D., Nguyen, Le Huong, Neugebauer, Helmut, Sariciftci, Niyazi Serdar
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 30.04.2008; Elsevier Science
• Subjects: Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Conjugated polymer; Cross-disciplinary physics: materials science; rheology; Electronics; Energy; Exact sciences and technology; Liquid phase epitaxy; deposition from liquid phases (melts, solutions, and surface layers on liquids); Low band gap; Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Natural energy; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of specific thin films; Photovoltaic conversion; Physics; Poly-(2,5-Thienylene Vinylene); Polymers; organic compounds; Precursor polymer; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Solar cells. Photoelectrochemical cells; Solar energy; Transistors; Precursor polymer; Conjugated polymer; Low band gap; Poly-(2,5-Thienylene Vinylene); Solar cells; Liquid phase deposition; Electronic properties; Photonic band gap; Field effect transistors; Precursor; Molecular weight; Photovoltaic cell; Thin films; Energy gap; Optical properties
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/j.tsf.2007.08.001

Poly-(2,5-Thienylene Vinylene) (PTV) derivatives have been synthesised via the “dithiocarbamate precursor route” in good yield and satisfactory molecular weight. Structural characterisations of the conjugated PTV polymers reveal an optical band gap around 1.8 eV. Organic field effect transistors and organic based photovoltaic devices were made with the plain PTV, via a precursor approach. More specifically, solar cells were produced using a blend of the precursor PTV polymer and PCBM (1-(3-methoxycarbonyl) propyl-1-phenyl [6,6] C 61) at various ratios, converted in situ in thin film. A promising power efficiency of 0.76% was achieved.