Roll-to-Roll Production of Perovskite Solar Cells

Kevin Lifsey

Presented by Thad Druffel, University of Louisville

The perovskite technology has been touted as a huge economic opportunity because the thin films can be deposited using low temperature solution phase processes that can be easily scaled to roll-to-roll platforms. The Conn Center for Renewable Energy Research has been exploring the deposition of several of the layers in this multi-layered stack through slot die coating and intense pulsed light as a post-deposition annealing and sintering. In this talk, we will discuss roll-to-roll manufactured perovskite solar cells that were printed at 2 m/min on a web length of 1.5 meters. Discussion will center on the deposition and post-processing of organic and metal-organic thin films to achieve high throughput in a small footprint and will include formulation design and processing. Characterization of 1 cm2 solar cells will be presented along with analysis of the individual thin films using scanning electron microscopy, X-ray diffraction, photoluminescence and X-ray photoelectron spectroscopy. Finally, an economic analysis of high throughput processing will contextualize the proposed small footprint process.

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