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Tailoring Nanoscale Morphology of Polymer:Fullerene Blends Using Electrostatic Field

TitleTailoring Nanoscale Morphology of Polymer:Fullerene Blends Using Electrostatic Field
Publication TypeJournal Article
Year of Publication2017
AuthorsElshobaki, M, Gebhardt, R, Carr, J, Lindemann, W, Wang, WJ, Grieser, E, Venkatesan, S, Ngo, E, Bhattacharjee, U, Strzalla, J, Jiang, Z, Qiao, QQ, Petrich, JW, Vaknin, D, Chaudhary, S
Journal Interfaces
Date Published01
Type of ArticleArticle
ISBN Number1944-8244
Accession NumberWOS:000392909500078
Keywords11-percent efficiency, charge-transport, conjugated polymers, electric-field, electrostatic field, fullerene, high-mobility, Materials Science, nanomorphology, organic photovoltaics, P3HT, polymer, polymer solar-cells, tandem, Technology - Other Topics, thin-films, Van de Graaff OPVs

reated BHJs affirmed that fullerene molecules can easily penetrate the spaghetti-like P3HT and move up and down following the E-field. Using E-field treatment, we achieved favorable morphologies-with efficient charge separation, transport, and collection. We improve; (1) the hole mobility values up to 19.4 X 10(-4) +/- 1.6 x 10(-4) cm(2) V(-1)s(-1) and (2) the power conversion efficiency (PCE) of conventional and inverted OPVs up to 2.58 +/- 0.02% and 4.1 +/- 0.40%, respectively. This E-field approach can serve as a new morphology-tuning technique, which is generally applicable to other polymer-fullerene systems.

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Bioinspired Materials

Alternate JournalACS Appl. Mater. Interfaces