New efficient organic compounds in dye-sensitized solar cells

Abstract EN

We demonstrate the use of three new organic photosensitizer compounds in dye sensitized solar cells (DSSCs).

One of these compounds is a diazapentadiene derivative [1], while the other two compounds are diazole derivatives [1].

The construction of the cell involved use of a commercially available indium tin oxide (ITO) conductive electrode on which a thin layer of TiO2 was deposited by chemical vapor deposition (CVD).

The other electrode was composed of a thin graphitic layer on ITO.

A gelled iodine / iodide combination was used as the redox system.

We have studied the current versus voltage (IV) characteristics and the power versus voltage of these DSSCs at a relatively low light intensity.

The efficiency and the fill factor for each cell were consequently calculated.