Birck Nanotechnology Center

Dr. Yanyan Cao Seminar

October 17 @ 10:00 AM - 11:00 AM - BRK 1001

Title: Solution Processes to CZTS Thin Film Solar Cells

Abstract:Solution processing has the potential to significantly reduce the production cost for thin film photovoltaic cells. Several solution-based methods to fabricate Cu2ZnSn(S,Se)4(CZTSSe) thin films are presented. In one approach highlighted in this talk, binary and ternary chalcogenidenanoparticles were synthesized and used as precursors to form CZTSSethin films. The composition of the CZTSSefilms can be easily controlled by adjusting the ratio of the nanoparticles used.  The effect of compositional adjustment on device performance is illustrated. Lab-scale photovoltaic cells with 8.5% total-area efficiency (or 9.6% active-area efficiency) were demonstrated without anti-reflective coatings.

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