Thermal treatment improvement of CuSbS2 absorbers
Abstract: Thermal treatment in Sb2S3 vapor was used to improve the quality of CuSbS2 thin films, a promising non-toxic and earth-abundant absorber. A change in the CuSbS2 crystallographic texture and a decrease in the lattice stress were observed, as well as increases in the grain size, photoluminescence intensity and photoconductivity. To eliminate the influence of the possible Sb2S3 rich surface layer on photovoltaic performance, a selective chemical etching with KOH was developed.
Author(s): Lucas, FWD; Welch, AW; Baranowski, LL; Dippo, PC; Mascaro, LH; Zakutayev, A
2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC)
Published: JUN 14-19, 2015
