1 research outputs found
Efficient In Situ Sulfuration Process in Hydrothermally Deposited Sb<sub>2</sub>S<sub>3</sub> Absorber Layers
Sulfuration plays a decisive role in enhancing crystal
growth and
passivate defects in the fabrication of high-efficiency metal-sulfide
solar cells. However, the traditional sulfuration process always suffers
from high-price professional equipment, tedious processes, low activity
of S, or high toxicity of H2S. Here, we develop a desired
in situ sulfuration by introducing tartaric acid additive into the
hydrothermal deposition process of Sb2S3. Tartaric
acid, sodium thiosulfate, and potassium antimony tartaric can form
Sb2Sx-contained (x > 3) as-prepared films. Encouragingly, the annealing becomes
an
inspiring in situ sulfuration process, which can obtain a more compact
absorber layer. In addition, the crystallinity and defect property
of the Sb2S3 film are also improved significantly.
Finally, we achieve a high-performance Sb2S3 solar cell with a power conversion efficiency of 6.31%, which shows
an encouraging enhancement of ∼15% compared with the traditional
hydrothermal process. This study provides an innovative way to prepare
high-efficiency Sb2S3 solar cells and provides
a desirable guide to realize the in situ sulfuration process