Wägele, L.; Rata, D.; Gurieva, G.; Scheer, R.: Structural analysis of co-evaporated In2S3 and In2S3:V for solar cell absorber applications. Physica Status Solidi C 14 (2017), p. 1600204/1-5
In this study we use co-evaporation to grow In2S3 thin films on glass substrates and X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) to analyse the structural properties of annealed In2S3 and V-doped In2S3 for intermediate band solar cell application. We find coevaporated In2S3 to be polycrystalline on float glass and with improved crystallinity after annealing in S-atmosphere. We confirm that excessive incorporation of vanadium into the host structure is possible without formation of secondary crystalline phases. The analysis indicates a reduced crystalline quality after V doping.