Ling, Jin Kiong and Cuzzupè, Daniele T. and Ud Din, Muhammad Faraz and Stepura, Anastasiia and Burgard, Tom and Temitmie, Yekitwork Abebe and Majkova, Eva and Omastova, Maria and Jose, Rajan and Mende, Lukas Schmidt- and Azhar, Fakharuddin (2024) MXene-embedded PEDOT: PSS hole-transport material for lead-free perovskite solar cells. ACS Applied Energy Materials, 7 (17). pp. 7152-7158. ISSN 2574-0962. (Published) (Letter)
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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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