Matches in SemOpenAlex for { <https://semopenalex.org/work/W4290565496> ?p ?o ?g. }
- W4290565496 endingPage "2201344" @default.
- W4290565496 startingPage "2201344" @default.
- W4290565496 abstract "Spiro-OMeTAD is one of the most used hole transport layers (HTLs) in high efficiency n-i-p perovskite solar cells (PSCs). However, due to the unsatisfactory conductivity of pristine Spiro-OMeTAD, additives such as tert-butylpyridine (tBP) and lithium bis (trifluoromethylsulfonyl)-imide (LiTFSI) are required to improve its hole transportation. The hygroscopic nature of these additives inevitably deteriorates the device's stability. Here, it is shown that by adding fluorinated graphene (FG) into the Li-TFSI and tBP doped Spiro-OMeTAD, both efficiency and stability of the PSCs are significantly enhanced. Using the FG incorporated Spiro-OMeTAD HTL, the power conversion efficiency (PCE) of the PSC reaches 21.92%, which is 11.8% higher than the original device. The FG not only improves the hole mobility of Spiro-OMeTAD but also effectively reduces the amount of lithium ions in the perovskite layer and improves the hydrophobicity of the HTL. The FG incorporating cell shows better stability, maintaining 90% of initial efficiency over a 2400 h test in ambient conditions with 25% humidity. Finally, it is further demonstrated that the valence band of FG incorporated Spiro-OMeTAD HTL has a positive effect on PSCs with a 2D interfacial layer, achieving an impressive PCE of 23.14% and a Voc of 1.226 V." @default.
- W4290565496 created "2022-08-08" @default.
- W4290565496 creator A5002824835 @default.
- W4290565496 creator A5008179879 @default.
- W4290565496 creator A5013098514 @default.
- W4290565496 creator A5033830330 @default.
- W4290565496 creator A5044298887 @default.
- W4290565496 creator A5047284493 @default.
- W4290565496 creator A5049640294 @default.
- W4290565496 creator A5052389933 @default.
- W4290565496 creator A5069597439 @default.
- W4290565496 creator A5078159397 @default.
- W4290565496 date "2022-08-07" @default.
- W4290565496 modified "2023-10-01" @default.
- W4290565496 title "Enhanced Efficiency and Stability of n‐i‐p Perovskite Solar Cells by Incorporation of Fluorinated Graphene in the Spiro‐OMeTAD Hole Transport Layer" @default.
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- W4290565496 doi "https://doi.org/10.1002/aenm.202201344" @default.