A. G. Al-Gamal
;
Ahmed Mourtada Elseman
;
M. Abdel-Shakour
;
T. H. Chowdhury
;
K. I. Kabel
;
A. A. Farag
;
A. M. Rabie
;
N. E. A. Abd El-Sattar
;
Naoki Fukata
(National Institute for Materials Science
)
;
Ashraful Islam
(National Institute for Materials Science
)
説明:
(abstract)Hole transport layers (HTLs) are one of the most significant elements influencing the performance of perovskite solar cells (PSCs). PEDOT:PSS (= Poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate)) is regarded to be the most conducting polymer to use as an organic HTL for the inverted structure of PSCs. Due to the highly acidic behavior, PEDOT:PSS-based PSCs have shown limited stability. Additionally, the valence band mismatch of the PEDOT:PSS layer with the adjacent perovskite layer often results in low open-circuit voltage (VOC) of the overall PSC. To address these issues, we have incorporated a thin layer of ethylenediamine functionalized graphene (EDA-FG) between the indium tin oxide (ITO) anode and the PEDOT:PSS layer yielding a bilayer HTL. The new bilayer successfully matches the energy valence band at the HTLs/ perovskite layer interface. The photoluminescence (PL) confirms that the deposited EDA-FG/PEDOT:PSS quenched the perovskite layer more than PEDOT:PSS. Based on the enhanced electrical and optical properties, a champion PCE of 17.66% was obtained for the respective PSCs. Additionally, the PSCs showed stable photovoltaic behavior up to 500 h.
権利情報:
キーワード: Functionalized graphene, Graphene oxide, Graphene ethylenediamine, Perovskite solar cell
刊行年月日: 2023-05-18
出版者: Springer Science and Business Media LLC
掲載誌:
研究助成金:
原稿種別: 著者最終稿 (Accepted manuscript)
MDR DOI: https://doi.org/10.48505/nims.4708
公開URL: https://doi.org/10.1007/s42114-023-00681-w
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更新時刻: 2024-08-30 16:30:33 +0900
MDRでの公開時刻: 2024-08-30 16:30:33 +0900
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