Chemical Design of Organic Interface Modifiers for Highly Efficient and Stable Perovskite Solar Cells

Seul-Gi Kim, Kai Zhu

Research output: Contribution to journalArticlepeer-review

11 Scopus Citations

Abstract

Perovskite solar cells (PSCs) have demonstrated rapid progress in their power conversion efficiencies (PCEs)—from 3.8% in 2009 to 25.7% in 2022—and they have received considerable attention as a promising future photovoltaic (PV) technology. However, the operational stability of PSCs is still inadequate to satisfy the standards for commercial applications. Interface engineering has become one of the most important strategies to push PSCs’ efficiency and stability for practical use. Among the various interface engineering approaches, organic interface modifiers (OIMs) have been frequently used by the PSC field to address the issues limiting PSC stability at high efficiency levels. In this perspective, the chemical structures of state-of-the-art OIMs are discussed, and their characteristics are reviewed, as well as the impact on device performance associated with key device interfaces (e.g., metal oxide/perovskite and organic transport layer/perovskite interfaces) from a chemical and materials engineering point of view is discussed. Design considerations and the authors' perspective are discussed, on the basis of representative literature examples, for building new, customized organic OIMs to further improve PSC efficiency and stability toward commercialization.

Original languageAmerican English
Article number2300603
Number of pages15
JournalAdvanced Energy Materials
Volume13
Issue number25
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Wiley-VCH GmbH.

NREL Publication Number

  • NREL/JA-5900-85453

Keywords

  • interface engineeing
  • organic interfacial modifier
  • perovskites
  • stability

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