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MXene-embedded PEDOT-PSS hole-transport material.pdf Available under License Creative Commons Attribution. Download (4MB) | Preview |
Abstract
Improving the energy alignment between charge-transport layers and the perovskite is crucial for further enhancing the photovoltaic performance of tin-based perovskite solar cells (PSCs). Herein, the role of Ti3C2Tx MXene in a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) hole transport layer (HTL) on the photovoltaic properties of PSCs is investigated as a function of its concentration. An improved perovskite film formation with reduced pinhole density and a more uniform contact potential difference is noted when MXene is embedded in the PEDOT:PSS HTL. The work function of the HTL is increased according to photoelectronic measurements, leading to a favorable energy alignment with the HOMO of PEA0.2FA0.8SnI3 perovskite. PSCs fabricated using a MXene-embedded PEDOT:PSS HTL delivered a power conversion efficiency (PCE) of 8.35% compared to 7.35% from the pristine counterpart, while retaining ∼90% of its initial PCE after 450 h of storage in a N2 atmosphere.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | 2D materials; hole-transporting materials; Perovskite solar cells; Phenylethylamine cation (PEAI); Quasi-2D perovskites; Tin perovskite |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies |
| Depositing User: | Mrs. Nurul Hamira Abd Razak |
| Date Deposited: | 27 Mar 2025 01:07 |
| Last Modified: | 27 Mar 2025 01:07 |
| URI: | http://umpir.ump.edu.my/id/eprint/44147 |
| Download Statistic: | View Download Statistics |
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