Two-step heat treatment of carbon nanotube based paste as counter electrode of dye-sensitised solar cells

Optimum heat treatment processes for carbon nanotubes (CNTs) paste counter electrodes with better electrochemical performance are investigated. Half-cells were fabricated to examine the electrochemical properties of the CNT paste counter electrode. Proposed is a two-step heat treatment process and an optimum sintering temperature for CNT paste counter electrodes.