Scalable open-air processing of electron transport layers for perovskite solar cells

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Abstract/Contents

Abstract
This dissertation explores open-air processing of perovskite solar cells, specifically on the electron transport layer deposited above the perovskite layer. An inorganic titanium dioxide electron transport layer is first explored using an open-air chemical vapor deposition process. The titanium dioxide demonstrates improved mechanical stability and barrier properties against ingress of environmental species. The development of an open-air ultrasonic spray process for the deposition of an organic electron transport bilayer on top of perovskite is presented next. The successful spray deposition and resultant film quality is highly dependent on solvent composition and the inclusion of a near-infrared heating module to accelerate film drying. In addition, the second half of the bilayer is an ultrathin (sub 10 nm) film that requires sophisticated characterization to ensure that the film is of the appropriate thickness and surface morphology. The sprayed organic electron transport bilayer is integrated into perovskite solar cell devices exhibiting high efficiencies > 20%. Finally, the spray process is included in a previously developed cost model resulting in significant manufacturing cost savings.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2024; ©2024
Publication date 2024; 2024
Issuance monographic
Language English

Creators/Contributors

Author Chen, Justin P
Degree supervisor Dauskardt, R. H. (Reinhold H.)
Thesis advisor Dauskardt, R. H. (Reinhold H.)
Thesis advisor Salleo, Alberto
Thesis advisor Saraswat, Krishna
Degree committee member Salleo, Alberto
Degree committee member Saraswat, Krishna
Associated with Stanford University, School of Engineering
Associated with Stanford University, Department of Materials Science and Engineering

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Justin P. Chen.
Note Submitted to the Department of Materials Science and Engineering.
Thesis Thesis Ph.D. Stanford University 2024.
Location https://purl.stanford.edu/fn007kz3315

Access conditions

Copyright
© 2024 by Justin P Chen
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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