Refining the Substrate Surface Morphology for Achieving Efficient Inverted Perovskite Solar Cells

Abstract: Significant advancements in perovskite solar cells (PSCs) have been driven by the engineering of the interface between perovskite absorbers and charge transport layers. Inverted PSCs offer substantial potential with their high power conversion efficiency (PCE) and enhanced compatibility for tandem solar cell applications. Conventional hole transport materials like poly (3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and poly (triaryl amine) (PTAA) not only constrain the PSC efficiency but also elevate their fabrication costs. In the case of improving inverted structured PSCs according to the aforementioned concerns, utilizing self‐assembled monolayers (SAMs) as hole‐transporting layers has played a crucial role. However, the growth of self‐assembled monolayers on the substrates still limits the performance and reproducibility of inverted structured PSCs. In this study, the authors delve into the growth model of SAMs on different surface morphologies. Moreover, it is found that the plasma treatment can effectively regulate the surface morphologies of substrates and achieve conformal growth of SAMs. This treatment improves the uniformity and suppresses non‐radiative recombination at the interface, which leads to a PCE of 24.5% (stabilized at 23.5%) for inverted structured PSCs.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Refining the Substrate Surface Morphology for Achieving Efficient Inverted Perovskite Solar Cells ; day:25 ; month:09 ; year:2023 ; extent:9
Advanced energy materials ; (25.09.2023) (gesamt 9)

Creator
Guo, Renjun
Wang, Xi
Jia, Xiangkun
Guo, Xiao
Li, Jia
Li, Zerui
Sun, Kun
Jiang, Xiongzhuo
Alvianto, Ezra
Shi, Zhuojie
Schwartzkopf, Matthias
Müller‐Buschbaum, Peter
Hou, Yi

DOI
10.1002/aenm.202302280
URN
urn:nbn:de:101:1-2023092615171547250077
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:58 AM CEST

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Associated

  • Guo, Renjun
  • Wang, Xi
  • Jia, Xiangkun
  • Guo, Xiao
  • Li, Jia
  • Li, Zerui
  • Sun, Kun
  • Jiang, Xiongzhuo
  • Alvianto, Ezra
  • Shi, Zhuojie
  • Schwartzkopf, Matthias
  • Müller‐Buschbaum, Peter
  • Hou, Yi

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