Scalable Perovskite Thin-Film Photovoltaics

In recent years lead halide based thin-film perovskites have emerged as a promising direct bandgap semiconductor for light absorption and emission applications. This is in part due to their compositional tunability and potential alloying that allows their color to be tuned from the near-IR through t...

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Main Author: Swartwout, Richard Michael Steuben
Other Authors: Bulović, Vladimir
Format: Thesis
Published: Massachusetts Institute of Technology 2022
Online Access:https://hdl.handle.net/1721.1/140041
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author Swartwout, Richard Michael Steuben
author2 Bulović, Vladimir
author_facet Bulović, Vladimir
Swartwout, Richard Michael Steuben
author_sort Swartwout, Richard Michael Steuben
collection MIT
description In recent years lead halide based thin-film perovskites have emerged as a promising direct bandgap semiconductor for light absorption and emission applications. This is in part due to their compositional tunability and potential alloying that allows their color to be tuned from the near-IR through the visible spectrum. Additionally, these materials are moderately soluble, opening the door to solution processing methods rather than traditional physical or chemical vapor-based growth. For photovoltaic applications, the thin-film devices created using perovskite materials are thin relative to silicon wafer-based counterparts and therefore have the potential to be used in mechanically flexible cell architectures. This allows for high-speed roll-to-roll printing and coating processes as pathways for large scale manufacturing. Here, the challenges of scaling these materials are discussed from multiple vantage points keeping end slot-die manufacturing in mind. First, as these are ink-based materials, governmental regulations on the use of solvents is considered and a technoeconomic model is created to guide manufacturing scale-up development. Second, the solubility limits of these materials are determined and novel ligand based multicomponent inks are developed that fit within the economic limits of regulation. Lastly, a novel ink-based recrystallization method is presented that is capable of accessing all industrially relevant stable perovskite compositions with minimal post-annealing requirements. We use these inks and recrystallization methods on both lab scale and larger area slot-die coating techniques for high-efficiency photovoltaic devices.
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spelling mit-1721.1/1400412022-02-08T04:03:54Z Scalable Perovskite Thin-Film Photovoltaics Swartwout, Richard Michael Steuben Bulović, Vladimir Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science In recent years lead halide based thin-film perovskites have emerged as a promising direct bandgap semiconductor for light absorption and emission applications. This is in part due to their compositional tunability and potential alloying that allows their color to be tuned from the near-IR through the visible spectrum. Additionally, these materials are moderately soluble, opening the door to solution processing methods rather than traditional physical or chemical vapor-based growth. For photovoltaic applications, the thin-film devices created using perovskite materials are thin relative to silicon wafer-based counterparts and therefore have the potential to be used in mechanically flexible cell architectures. This allows for high-speed roll-to-roll printing and coating processes as pathways for large scale manufacturing. Here, the challenges of scaling these materials are discussed from multiple vantage points keeping end slot-die manufacturing in mind. First, as these are ink-based materials, governmental regulations on the use of solvents is considered and a technoeconomic model is created to guide manufacturing scale-up development. Second, the solubility limits of these materials are determined and novel ligand based multicomponent inks are developed that fit within the economic limits of regulation. Lastly, a novel ink-based recrystallization method is presented that is capable of accessing all industrially relevant stable perovskite compositions with minimal post-annealing requirements. We use these inks and recrystallization methods on both lab scale and larger area slot-die coating techniques for high-efficiency photovoltaic devices. Ph.D. 2022-02-07T15:20:31Z 2022-02-07T15:20:31Z 2021-09 2021-09-21T19:30:37.220Z Thesis https://hdl.handle.net/1721.1/140041 In Copyright - Educational Use Permitted Copyright MIT http://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology
spellingShingle Swartwout, Richard Michael Steuben
Scalable Perovskite Thin-Film Photovoltaics
title Scalable Perovskite Thin-Film Photovoltaics
title_full Scalable Perovskite Thin-Film Photovoltaics
title_fullStr Scalable Perovskite Thin-Film Photovoltaics
title_full_unstemmed Scalable Perovskite Thin-Film Photovoltaics
title_short Scalable Perovskite Thin-Film Photovoltaics
title_sort scalable perovskite thin film photovoltaics
url https://hdl.handle.net/1721.1/140041
work_keys_str_mv AT swartwoutrichardmichaelsteuben scalableperovskitethinfilmphotovoltaics