Abstract
Fullerene and acenequinone compounds have been examined as electron mediators between a p-type semiconductive polymer and two n-type oxide semiconductors. Composite interlayer materials and photovoltaic test cells were assembled and studied for their fluorescence quenching, current-voltage, and quantum efficiency behavior to characterize the efficacy of the acceptor-sensitizers as electron-selective interlayers. The sensitizers are generally more effective with titanium dioxide than with zinc oxide, due to the difference in magnitude of dipole-induced vacuum level shifts at the respective oxide interfaces. In titanium dioxide-based solar cells, where dipole effects are weak, photovoltage and fill factor increase in a trend that matches the increase in the first reduction potential of the acceptor-sensitizers. Photosensitization of the oxide semiconductor by the acceptor-sensitizers is observed to operate either in parallel with the polymer as an alternate photosensitizer or in series with the polymer in a two-photon process, according to an acceptor-sensitizer's first reduction potential. In zinc oxide-based solar cells, where dipole effects are stronger, the acceptor-sensitizers impaired most devices, which is attributed to an...Continue Reading
References
Mar 28, 2003·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Minoru YamajiSeiji Tobita
Oct 8, 2004·Organic Letters·Lezah W Roberts, Gary B Schuster
Mar 30, 2005·Nano Letters·H HoppeN S Sariciftci
Jul 20, 2005·Chemical Communications : Chem Comm·Florian BeuerleAndreas Hirsch
Feb 24, 2006·The Journal of Physical Chemistry. B·Yuxiang LiuDavid S Ginley
Apr 14, 2006·The Journal of Physical Chemistry. B·Punniamoorthy RavirajanJenny Nelson
Jul 21, 2006·The Journal of Physical Chemistry. B·Sven RühleArie Zaban
Oct 26, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Karthik ShankarCraig A Grimes
Apr 17, 2008·Journal of the American Chemical Society·Changduk YangFred Wudl
Feb 10, 2009·Nature Materials·Russel B RossMartin Drees
Feb 14, 2009·Journal of the American Chemical Society·Yun-Yue LinChun-Wei Chen
Feb 28, 2009·Journal of the American Chemical Society·Bin Liu, Eray S Aydil
Nov 17, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Rebecca A JensenJoseph T Hupp
Dec 17, 2009·Nano Letters·Alejandro L BrisenoPeidong Yang
Mar 13, 2010·Journal of the American Chemical Society·Chao-Hsiang HsiehChain-Shu Hsu
Citations
Feb 8, 2013·ACS Applied Materials & Interfaces·Seare A BerheW Justin Youngblood
Feb 28, 2014·ACS Applied Materials & Interfaces·Andrew J HaringAmanda J Morris
May 31, 2014·ACS Applied Materials & Interfaces·Seare A BerheW Justin Youngblood
Jan 13, 2019·Scientific Reports·Philipp EhrenreichLukas Schmidt-Mende
Jun 24, 2014·Physical Chemistry Chemical Physics : PCCP·R RaccisS Mathur