Photovoltaic activity of layered zirconium phosphates containing covalently grafted ruthenium tris(bipyridyl) and diquat phosphonates as electron donor/acceptor sites.
Two layered zirconium phosphates containing Ru(bpy)(3)(2+) mono- or diphosphonates and diquat, {Ru(bpy)(3)(2+)[]/ZrP/DQ(++)} and Ru(bpy)(3)(2+)[]/ZrP/DQ(++), covalently attached to the phosphate layers exhibit notable photovoltaic response (the maximum V(OC), J(SC), and FF were 0.093 V, 16.8 microA cm(-2) and 0.33, respectively). The photocurrent spectra indicate that the photovoltaic response is due predominantly to direct photoexcitation of gamma-ZrP host, Ru(bpy)(3)(2+) and diquat acting as hole and electron traps, respectively, for the charge separated state of the semiconductor.
Instituto de Tecnología Química, UPV-CSIC, Universidad Politécnica de Valencia, Av. de los Naranjos s/n, Valencia, Spain.
Laura
L
Teruel
Marina
M
Alonso
M Carmen
MC
Quintana
Alvaro
A
Salvador
Olga
O
Juanes
Juan Carlos
JC
Rodriguez-Ubis
Ernesto
E
Brunet
Hermenegildo
H
García