Radial electron collection in dye-sensitized solar cells.
We introduce a new photoelectrode architecture consisting of concentric conducting and semiconducting nanotubes for use in dye-sensitized solar cells (DSSCs). Atomic layer deposition is employed to grow indium tin oxide (ITO) within a porous template and subsequently coat the high area photoelectrode with amorphous TiO 2. Compared with control devices lacking a current collector within the pores, the new photoelectrode geometry exhibits dramatically higher current densities, an effect attributed to the radial collection of electrons.
Martinson
Alex B F
AB
Department of Chemistry and Argonne-Northwestern Solar Energy Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Elam
Jeffrey W
JW
Liu
Jun
J
Pellin
Michael J
MJ
Marks
Tobin J
TJ
Hupp
Joseph T
JT