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Hongkyu Kang, Soonil Hong, Jongjin Lee and Kwanghee Lee Organic Electronics: Electrostatically Self-Assembled Nonconjugated Polyelectrolytes as an Ideal Interfacial Layer for Inverted Polymer Solar Cells (Adv. Mater. 22/2012) Advanced Materials 24

Article first published online: 4 JUN 2012 | DOI: 10.1002/adma.201290129

Thumbnail image of graphical abstract

A highly efficient, flexible polymer inverted solar cell is fabricated by K. Lee and co-workers from various colored inks. In the image, an enlarged chemical structure of the interface between an indium tin oxide (ITO) cathode (sky-blue) and a nonconjugated polyelectrolyte (white) is shown. The authors focus in particular on the ionic self-assembling nature of these novel interfacial materials, achieved via dipole interactions, which dramatically reduce the ITO workfunction. These mechanisms are illustrated schematically on page 3005.

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