Dresden 2026 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster I
CPP 17.41: Poster
Monday, March 9, 2026, 19:00–21:00, P5
Optimization in Fabrication Process and Understanding the Impact of Crystal Size and Growth in RbCsMAFA Perovskite Solar Cells — •Bashudev Bhandari1,2,3, Sai Durga Prasad Sudana1,2, Chikezie Williams Ugokwe1,2, Ulrich S Schubert1,2, and Harald Hoppe1,2 — 1Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich-Schiller-University Jena, Germany — 2Laboratory of Organic and Macromolecular Chemistry (IOMC Jena), Friedrich-Schiller- University Jena, Germany — 3Faculty of Physics and Astronomy, Friedrich-Schiller- University Jena, Germany
Perovskite solar cells (PSCs) emerged as remarkable and promising cutting-edge clean and green energy sources. Recent breakthroughs in their performance attract researcher's interest. Despite its promising performance, degradation issues and defects are critical obstacles to overcome. Our work explores different mechanisms to suppress defects and improve stability via improved crystallization. We have systematically optimized different processing parameters such as annealing time, antisolvent dropping time, hot casting, etc., and introduced additives like different phosphonium salts and PEAI for passivation and seeding for perovskite growth. Different Characterization and imaging techniques illustrate improved crystalline and opto-electronic properties of the perovskite film and solar cells.
Keywords: Perovskite,; Optoelectronic; Crystallization; Antisolvent; Maximum power point