High-Efficiency Perovskite Solar Cells with Sputtered Metal Contacts
Source abstract
Abstract
Sputter deposition produces dense, uniform, adhesive, and scalable metal contacts for perovskite solar cells (PSCs). However, sputter deposition damages the other layers of the PSC. We here report that the damage caused by sputtering metal contacts can be reversed by aerial oxidation. We support this claim by making PSCs sputtered with Au contacts that exhibit higher efficiencies (18.7%) and stabilities than those made with thermally evaporated Au contacts (18.4%). We performed a series of experiments that show that the post-sputtering oxidation step reconstructs the molecular order of the hole transport layer (HTL) and reverses Au atom diffusion into the HTL. This potential restoration was previously neglected in PSC fabrication recipes because metal contact deposition is generally performed after the HTL oxidation. This result is important for scaling PSCs because sputtering is a superior method for manufacturing optimal-quality coatings or large-area devices.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British ColumbiaV6T 1Z1, Canada
Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British ColumbiaV6T 1Z3, Canada
Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, British ColumbiaV6T 1Z4, Canada
Canadian Institute for Advanced Research (CIFAR), 661 University Avenue, Toronto, OntarioM5G 1M1, Canada
Funding
Canada Foundation for Innovation · Canada Research Chairs · Canada First Research Excellence Fund · Natural Sciences and Engineering Research Council of Canada · Canadian Institute for Advanced Research
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