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working paper
Ammonia-assisted vapour transport deposition of formamidinium salts for perovskite thin films
2021
Formamidinium (FA) cations commonly used in perovskite semiconductors tend to form sym-triazine when sublimed in vacuum, a process that hampers the deposition process. Here we find that ammonia, when used as a carrier gas for formamidinium halides transport, cleaves the sym-triazine ring back to formamidinium, hence enhancing the deposition efficiency.
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Name
Ammonia-assisted chemical vapor deposition of perovskite layer from sym-triazine and formaminidium iodide.pdf
Type
Preprint
Access type
openaccess
License Condition
CC BY-NC-ND
Size
1.46 MB
Format
Adobe PDF
Checksum (MD5)
cc9705c3966f91b6653ef2d9a2f3653f