Cyanine dye polyelectrolytes for organic bilayer solar cells
作者： Lei Wang , Christian Hinderling , Sandra Jenatsch , Frank Nüesch , Daniel Rentsch
DOI: 10.1016/J.POLYMER.2014.05.035
关键词:
摘要: Polyelectrolytes composed of an anionic sulfoethyl methacrylate/methacrylate backbone and cationic cyanine dyes counter ions are synthesized. The effective reaction sequence is confirmed by NMR spectroscopy consists a thermal radical copolymerization to obtain the polymer (M-n, similar 40 kg mol(-1)), followed deprotonation group salt metathesis with elimination silver halide incorporate dye. With increasing content (20-50% repeating units) polyelectrolytes become insoluble in apolar solvents. This allows fabrication simple solution-processed bilayer organic solar cells, where electron acceptor fullerene layer coated from orthogonal solvent chlorobenzene onto underlying polyelectrolyte donor layer. optimization cells described, photo-CELIV measurements used identify low hole mobility as main reason that currently limits cell performance 0.9%. (C) 2014 Elsevier Ltd. All rights reserved.
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