Home Publications Optical properties of quaternary kesterite-type Cu2Zn(Sn1-xGex)S4 crystalline alloys: Raman scattering, photoluminescence and first-principle calculationsOptical properties of quaternary kesterite-type Cu2Zn(Sn1-xGex)S4 crystalline alloys: Raman scattering, photoluminescence and first-principle calculationsby June 10, 2026