Thermodynamic study of a synthetic analog of the famatinite mineral - Cu3SbS4

Abstract

Fundamental thermodynamic properties of the synthetic analog of the famatinite mineral - Cu3SbS4 were studied on the basis of electromotive force (EMF) measurements. The EMF of the concentration chains relative to the Cu electrode with a solid electrolyte was measured for the alloys from the Cu3SbS4 + Sb2S3 + S phase region at 300-380K temperature interval. Based on measurement data, the relative partial thermodynamic functions of copper in alloys, the standard thermodynamic functions of formation, as well as, the standard entropy of the Cu3SbS4 ternary compound were calculated for the first time.

Electronic structure, defect properties, and optimization of the band gap of the earth-abundant and low-toxicity photovoltaic absorber Cu3SbS4

“…Our calculated formation enthalpy of Cu 3 SbS 4 is in very good agreement with the experimental value –2.57 eV. 63…”

“…Our calculated formation enthalpy of Cu 3 SbS 4 is in very good agreement with the experimental value -2.57 eV. 63 To avoid elementary substance precipitation, the relative chemical potentials should not be greater than zero: Dm Cu r 0, Dm Sb r 0, and Dm S r 0.…”

POWDER X-RAY DIFFRACTION STUDY OF THE Cu3SbS3-CuI SYSTEM

“…The presented work is a continuation of our research [14][15][16][17][18] in the field of metal chalcogenides and chalco-halides and is dedicated to the study of phase equilibria in the Cu 3 SbS 3 -CuI system. Initial compounds of the system are well studied.…”