Uniform Sb₂S₃ optical coatings by chemical spray method.

ABSTRACT: Antimony sulfide (Sb₂S₃), an environmentally benign material, has been prepared by various deposition methods for use as a solar absorber due to its direct band gap of ≈1.7 eV and high absorption coefficient in the visible light spectrum (1.8 × 10⁵ cm^-1 at 450 nm). Rapid, scalable, economically viable and controllable in-air growth of continuous, uniform, polycrystalline Sb₂S₃ absorber layers has not yet been accomplished. This could be achieved with chemical spray pyrolysis, a robust chemical method for deposition of thin films. We applied a two-stage process to produce continuous Sb₂S₃ optical coatings with uniform thickness. First, amorphous Sb₂S₃ layers, likely forming by 3D Vo

SUBMITTER: Eensalu JS 

PROVIDER: S-EPMC6350889 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature