We present the synthesis and characterization of a novel copolymer from benzodithiophene and alkylsulfanyl-bithiophene units, poly[4,8-bis(2- ethylhexyloxy)benzo[1,2-b:4,5-b′]dithiophene-alt-4,4′- bis(octylsulfanyl)-2,2′-bithiophene] (PolyS). The structural, electrochemical and photophysical properties of PolyS were investigated by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), NMR, UV-vis, photoluminescence (PL) spectroscopy and cyclic voltammetry (CV). PolyS was used to fabricate bulk-heterojunction polymer solar cells (PSCs) in combination with the PCBM and PCBM (electron acceptors). The device realized using PCBM shows a better current output due to the increased absorption of the blend film compared to the PolyS:PCBM one. The power conversion efficiency of the best PSC realized is 2.3% under 100 mW/cm2AM 1.5 G illumination. © 2012 Elsevier B.V. All rights reserved.
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
Morvillo, P., Parenti, F., Diana, R., Fontanesi, C., Mucci, A., Tassinari, F., & Schenetti, L. (2012). A novel copolymer from benzodithiophene and alkylsulfanyl-bithiophene: Synthesis, characterization and application in polymer solar cells. Solar Energy Materials and Solar Cells, 104, 45 - 52. https://doi.org/10.1016/j.solmat.2012.04.044