title: Top-down approach for nanophase reconstruction in bulk heterojunction solar cells.
abstract: "Top-Down" nanophase reconstruction via a post-additive soaking process is first presented with various BHJ binary composites. By simply rinsing as-cast BHJ films with a solvent mixture containing a few traces of a nanophase-control reagent such as 1,8-diiodooctane, oversized fullerene-rich clusters (>100 nm in dia-meter) in the BHJ film are instataneously disassembled and entirely reorganized into finely intermixed donor/acceptor nanophases (ca. 10 nm) with a 3D compositional homogeneity, without surface segregation.
authors.affiliation: Heeger Center for Advanced Materials, Research Institute for Solar & Sustainable Energies, Gwangju Institute of Science & Technology, Gwangju, 500-712, Republic of Korea.
authors.forename: Jaemin
authors.initials: J
authors.lastname: Kong
authors.forename: In-Wook
authors.initials: IW
authors.lastname: Hwang
authors.forename: Kwanghee
authors.initials: K
authors.lastname: Lee
keywords: bulk heterojunction; nanophase reconstruction; post-additive soaking