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Title:Scalable fabrication of perovskite solar cells by flow-limit field-injection electrostatic spraying
Author(s):Simonaitis, John
Contributor(s):Kim, Kevin
Subject(s):Spray deposition
lead halide perovskites
solar cells
renewable energy
scalable processing
electronic spraying
Abstract:In the last decade, lead halide perovskite solar cells have taken the photovoltaics community by storm, increasing to over 22% efficiency at an unprecedented rate while offering low-cost fabrication from earth-abundant materials. However, several key issues remain, one of the most significant being scalability due to a combination of the slow processing, large thermal budgets, and long range variation of most other techniques. In this work, we report an inexpensive, low-temperature (~70°C), and fast (~15 minute) method of spraying and converting perovskite solar cells all in a single step without the use of flash-annealing. With this technology, known as Flow-Limited Field-Injection Electrostatic Spraying (FFESS), we achieved excellent cell power conversion efficiencies with a standard FTO/TiO2/Perovskite/Spiro-MeoTad/Gold architecture.
Issue Date:2018-05
Date Available in IDEALS:2018-05-24

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