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Photoactive devices including porphyrinoids with coordinating additives

United States Patent

May 12, 2015
View the Complete Patent at the US Patent & Trademark Office
Coordinating additives are included in porphyrinoid-based materials to promote intermolecular organization and improve one or more photoelectric characteristics of the materials. The coordinating additives are selected from fullerene compounds and organic compounds having free electron pairs. Combinations of different coordinating additives can be used to tailor the characteristic properties of such porphyrinoid-based materials, including porphyrin oligomers. Bidentate ligands are one type of coordinating additive that can form coordination bonds with a central metal ion of two different porphyrinoid compounds to promote porphyrinoid alignment and/or pi-stacking. The coordinating additives can shift the absorption spectrum of a photoactive material toward higher wavelengths, increase the external quantum efficiency of the material, or both.
Forrest; Stephen R. (Ann Arbor, MI), Zimmerman; Jeramy (Ann Arbor, MI), Yu; Eric K. (Ann Arbor, MI), Thompson; Mark E. (Anaheim, CA), Trinh; Cong (Los Angeles, CA), Whited; Matthew (Northfield, MN), Diev; Vlacheslav (Los Angeles, CA)
The Regents of The University of Michigan (Ann Arbor, MI)
13/ 271,993
October 12, 2011
GOVERNMENT LICENSE RIGHTS This invention was made with government support under W15P7T-08-C-P409 awarded by the U.S. Army Communications-Electronics Command (CECOM) and DE-SC000103 awarded by the U.S. Department of Energy. The government has certain rights in the invention.