MXene-Embedded PEDOT:PSS Hole-Transport Material for Lead-Free Perovskite Solar Cells.

Autor: Ling J; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany.; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany., Cuzzupè DT; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany., Din MFU; Institute of Photovoltaic, 18 Boulevard Thomas Gobert, 91120 Palaiseau, France.; Institute of Physics and Polymer Institute, Slovak Academy of Sciences, 84541 Bratislava 45, Slovak Republic., Stepura A; Institute of Physics and Polymer Institute, Slovak Academy of Sciences, 84541 Bratislava 45, Slovak Republic., Burgard T; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany., Temitmie YA; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany.; Department of Physics, University of Bahir Dar, 6000 Bahir Dar, Ethiopia., Majkova E; Institute of Physics and Polymer Institute, Slovak Academy of Sciences, 84541 Bratislava 45, Slovak Republic., Omastova M; Institute of Physics and Polymer Institute, Slovak Academy of Sciences, 84541 Bratislava 45, Slovak Republic., Jose R; Center for Advanced Intelligent Materials and Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300 Pahang, Malaysia.; Center for Advanced Intelligent Materials and Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300 Pahang, Malaysia., Schmidt-Mende L; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany., Fakharuddin A; Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany.
Jazyk: angličtina
Zdroj: ACS applied energy materials [ACS Appl Energy Mater] 2024 Aug 23; Vol. 7 (17), pp. 7152-7158. Date of Electronic Publication: 2024 Aug 23 (Print Publication: 2024).
DOI: 10.1021/acsaem.3c02928
Abstrakt: 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 Ti 3 C 2 T x 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 PEA 0.2 FA 0.8 SnI 3 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 N 2 atmosphere.
Competing Interests: The authors declare no competing financial interest.
(© 2024 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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