Ullazine Donor–π bridge‐Acceptor Organic Dyes for Dye‐Sensitized Solar Cells
作者:Yanbing Zhang、Hammad Cheema、Louis McNamara、Leigh Anna Hunt、Nathan I. Hammer、Jared H. Delcamp
DOI:10.1002/chem.201800030
日期:2018.4.17
A series of four ullazine‐donor based donor–π bridge‐acceptor (D–π–A) dyes have been synthesized and compared to a prior ullazine donor‐acceptor (D–A) dye as well as a triphenylamine donor with an identical π–bridge and acceptor. The D–π–A ullazine series demonstrates an unusually uniform‐in‐intensity panchromatic UV/Vis absorption spectrum throughout the visible region. This is in part due to the
The Molecular Engineering of Organic Sensitizers for Solar-Cell Applications
作者:Jared H. Delcamp、Aswani Yella、Thomas W. Holcombe、Mohammad K. Nazeeruddin、Michael Grätzel
DOI:10.1002/anie.201205007
日期:2013.1.2
Positive to the core: Ullazine has both strong electron‐donating and weak accepting properties. This heterocycle was incorporated into sensitizers for dye‐sensitized solar cells (DSCs). One of these sensitizers demonstrated strong light absorption across the UV/Vis region. The corresponding DSC device has a maximum IPCE of 95 % at 520 nm, with a power conversion efficiency of 8.4 %.