Abstract
Manganese oxide-Nickel oxide (MnO
2
-NiO) has been successfully deposited on Fluorine doped Tin Oxide (FTO) glass electrode using a facile, effective and low cost electrodeposition process and was used as counter electrode (CE) in dye-sensitized solar cells (DSSC). The cells were characterized using electrochemical impedance spectra and cyclic voltammetry, which revealed enhanced electrocatalytic ability for the reduction of triiodide/iodide (
I
3
−
to
I
−
). Further, the photocurrent–voltage (
J
–
V
) characteristics under the illumination of 100 mW/cm
2
were studied. The DSSC with MnO
2
-NiO CE revealed higher short-circuit current density (
J
sc
) of 0.3 mA/cm
2
, open-circuit voltage (
V
oc
) of 0.83 V, and fill factor of 0.84. This suggests that the electrodeposited MnO
2
-NiO coated FTO electrode can be used to replace the commonly employed and expensive metal platinum (Pt) in DSSC.