Magnetic-field annealing of inverted polymer:fullerene hybrid solar cells with FePt nanowires as additive

Journal Article · Mon Dec 16 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4853935· OSTI ID:22253697

Chen, Chiang-Ting; Chen, Yang-Fang ^[1]; Hsu, Fang-Chi ^[2]; Li, Cheng-Hung; Chen, Chia-Chun ^[3]

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1. Department of Physics, National Taiwan University, Taipei 106, Taiwan (China)
2. Department of Materials Science and Engineering, National United University, Miaoli 360, Taiwan (China)
3. Department of Chemistry, National Taiwan Normal University, Taipei 106, Taiwan (China)

We demonstrate a facile annealing method to improve the polymer chain ordering of poly(3-hexythiophene) (P3HT):fullerene blend triggered by a small amount of FePt nanowires (FePt NWs). By applying a magnetic field perpendicular to the substrate during the solvent drying process, the resulting P3HT:fullerene:FePt NWs film becomes highly optical anisotropy and exhibits a much stronger X-ray diffraction intensity of P3HT. We hypothesize that the coupling force between the FePt NWs and P3HT can assist the polymer chain alignment leading to an improved device performance. The proposed approach is simple and can be applied to other polymer blend systems as well.

• OSTI ID: 22253697
• Journal Information: Applied Physics Letters, Vol. 103, Issue 25; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANNEALING
FULLERENES
MAGNETIC FIELDS
POLYMERS
QUANTUM WIRES
SOLAR CELLS
X-RAY DIFFRACTION