Thermal Evaporation of Sb2Se3 as Novel Counter Electrode for Dye-Sensitized Solar Cells

摘要

abstract_textpSb2Se3 was fabricated with a facile atmospheric pressure thermal evaporation procedure as counter electrode (CE) for dyesensitized solar cells (DSSCs). The introduction of a carbon nanoparticle (CNP) film as substrate was proved to facilitate Sb-2 Se-3 deposition, resulting in the formation of a Sb2Se3 layer on the surface of carbon nanoparticles (denoted as CNP-Sb2Se3). Electrochemical characterizations demonstrate the intrinsic catalytic ability of Sb(2)se(3) and better electrocatalytic activity and stability of Sb2Se3 deposited on CNP film in catalyzing I-3-reduction. Evaporation temperature was found to affect the electrocatalytic activity of CNP-Sb2Se3 and a lower temperature of 400 degrees C was proved to be better in our case. As a result, the best performing DSSC with CNP-Sb2Se3 CE yields a power conversion efficiency of 6.26, which is comparable to that based on Pt CE (6.47)./p/abstract_text