Journal
PRZEGLAD ELEKTROTECHNICZNY
Volume 98, Issue 2, Pages 95-97Publisher
WYDAWNICTWO SIGMA-N O T SP Z O O
DOI: 10.15199/48.2022.02.20
Keywords
perovskite; perovkite solar cells; holes transporting materials; 9,9 '-bifluorenylidene derivatives
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The article presents the application of two 9,9'-bifluorenylidene derivatives with different alkoxy chain lengths as hole transporting materials in perovskite solar cells. The compound with ethoxyl groups achieved a higher efficiency compared to the reference cells.
The article presents two 9,9'-bifluorenylidene derivatives differing in the length of the alkoxy chain, which were applied as hole transporting materials (HTM) in perovskite solar cells with structure FTO/b-TiO2/m-TiO2/perovskite/HTM/Au. Additionally, the reference cells without HTM and based on spiro-MeOTAD (C81H68N4O8) as HTM were also prepared. The highest efficiency (7.33%), being higher compare to the reference cell (4.40%), was reached for compound with ethoxyl groups.
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