articleJournal of the American Chemical SocietyMar 22, 2023Closed access

Tripodal Triazatruxene Derivative as a Face-On Oriented Hole-Collecting Monolayer for Efficient and Stable Inverted Perovskite Solar Cells

MAMinh Anh TruongTFTsukasa FunasakiLULucas UeberrickeWNWataru NojoRMRichard Murdey

Kyoto University · Kyoto University Institute for Chemical Research · +3 more institutions

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Abstract

Hole-collecting monolayers have drawn attention in perovskite solar cell research due to their ease of processing, high performance, and good durability. Since molecules in the hole-collecting monolayer are typically composed of functionalized π-conjugated structures, hole extraction is expected to be more efficient when the π-cores are oriented face-on with respect to the adjacent surfaces. However, strategies for reliably controlling the molecular orientation in monolayers remain elusive. In this work, multiple phosphonic acid anchoring groups were used to control the molecular orientation of a series of triazatruxene derivatives chemisorbed on a transparent conducting oxide electrode surface. Using infrared…

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Topics & keywords

Topics
Keywords
  • Monolayer
  • Chemistry
  • Perovskite (structure)
  • Solar cell
  • Molecule
  • Optoelectronics
  • Crystallography
  • Organic chemistry
UN Sustainable Development Goals
  • Affordable and clean energy
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