Contribution from a hole-conducting dye to the photocurrent in solid-state dye-sensitized solar cells

Phys Chem Chem Phys. 2011 Dec 7;13(45):20172-7. doi: 10.1039/c1cp22493j. Epub 2011 Oct 12.

Abstract

The hole transporting medium in solid-state dye-sensitized solar cells can be utilized to harvest sunlight. Herein we demonstrate that a triphenylamine-based dye, used as hole-transporting medium, contributes to the photocurrent in a squaraine-sensitized solid-state dye-sensitized solar cell. Steady-state photoluminescence measurements have been used to distinguish between electron transfer and energy transfer processes leading to energy conversion upon light absorption in the hole-transporting dye.