Abstract
A new technique, “CISCuT”, for the preparation of polycrystalline single-phase CulnS 2 thin films for solar applications has been developed. In a continuous roll-to-roll process a copper tape is at first electrochemically plated with an In layer. This tape undergoes in a second step at about 600°C a rapid sulfurization process at atmospheric pressure. Structural and electrical characterization (XRD, SEM, TEM, EDXS, I/ V-characteristics) reveals that in this high-speed, highly productive process photoactive CuInS 2 is formed. Single-phase CIS films of about 1.5 μm thickness, consisting of grains with 1–2 μm lateral dimensions are grown. The present state of understanding of the CuInS 2 formation is discussed in some detail. First solar cells prepared from this material show efficiencies around 6%. The new experimental approach described here is promising to become an effective low-cost method for the production of thin-film CIS absorber layers without any vacuum step. The continuous growth process from roll to roll is possibly a way to make solar cell and modul production competetive with conventional energy generation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
