Enhanced Electrical Conductivity of Sb(2)S(3) Thin Film via C(60) Modification and Improvement in Solar Cell Efficiency

Sb(2)S(3) has attracted great research interest very recently as a promising absorber material for photoelectric and photovoltaic devices because of its unique optical and electrical properties and single, stable phase. However, the intrinsic high resistivity property of Sb(2)S(3) material is one of the major factors restricting the further improvement of its application. In this work, the C(60) modification of Sb(2)S(3) thin films is investigated. The conductivity of Sb(2)S(3) thin films increases from 4.71 × 10(−9) S cm(−1) for unmodified condition to 2.86 × 10(−8) S cm(−1) for modified thin films. Thin‐film solar cells in the configuration of glass/(SnO(2):F) FTO/TiO(2)/Sb(2)S(3)(C(60))/Spiro‐OMeTAD/Au are fabricated, and the conversion efficiency is increased from 1.10% to 1.74%.