A Self-Assembled Small-Molecule-Based Hole-Transporting Material for Inverted Perovskite Solar Cells

Miriam Más-Montoya, Paula Gómez, David Curiel (Corresponding author), Ivan da Silva, Junke Wang, René A.J. Janssen (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Hybrid organic–inorganic perovskite solar cells have recently emerged as one of the most promising low-cost photovoltaic technologies. The remarkable progress of perovskite photovoltaics is closely related to advances in interfacial engineering and development of charge selective interlayers. Herein, we present the synthesis and characterization of a fused azapolyheteroaromatic small molecule, namely anthradi-7-azaindole (ADAI), with outstanding performance as a hole-transporting layer in perovskite solar cells with inverted architecture. Its molecular arrangement, induced by hydrogen-bond-directed self-assembly, favors a suitable morphology of the perovskite layer, reducing the effects of recombination as revealed by light intensity dependence, photoluminescence, and electroluminescence studies.

Original languageEnglish
Pages (from-to)10276-10282
Number of pages7
JournalChemistry : A European Journal
Volume26
Issue number45
Early online date4 Mar 2020
DOIs
Publication statusPublished - 12 Aug 2020

Keywords

  • fused-ring systems
  • organic electronics
  • self-assembly
  • solar cells
  • undoped hole-transport layer

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