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Title: Inkjet Printing of Conjugated Polymer: Fullerene Solar Cell Films
Keywords: inkjet, print, conjugated, polymer, fullerene, solar cell
Issue Date: 24-Aug-2012
Citation: LIM GUAN HUI (LIN YUANHUI) (2012-08-24). Inkjet Printing of Conjugated Polymer: Fullerene Solar Cell Films. ScholarBank@NUS Repository.
Abstract: In this thesis, I will address some of the challenges for fabricating high-quality films of an important semicrystalline polymer OSC composition, a biblend of regioregular(3-hexylthiophene): phenyl-C61-butyrate methyl ester (P3HT: PCBM) which can be used as the photoactive layer for polymer solar cells. For this work a research-grade multi-jet printer tool was employed. The thesis describes new insights obtained in the fluid jettability space that lead to a new way to represent this space in a jetting voltage-Ohnesorge number diagram, and also new IJP guidelines, including a new solvent formulation strategy and drying protocol, that together enable high-quality flat-top P3HT:PCBM films substantially free from the usual morphology challenges of coffee-stain, volcano and hillside effects, to be printed from hydrocarbon aromatic solvents. The power conversion efficiencies obtained for the printed films here approach those made using conventional spin-casting from chlorinated aromatics. The strategies should also be applicable to other forms of printing.
Appears in Collections:Ph.D Theses (Open)

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