Self-Assembly of Two-Dimensional Perovskite Nanosheet Building Blocks into Ordered Ruddlesden-Popper Perovskite Phase

Yong Liu, Martin Siron, Dylan Lu, Jingjing Yang, Roberto Dos Reis, Fan Cui, Mengyu Gao, Minliang Lai, Jia Lin, Qiao Kong, Teng Lei, Joohoon Kang, Jianbo Jin, Jim Ciston, Peidong Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The self-assembly of nanoparticles, a process whereby nanocrystal building blocks organize into even more ordered superstructures, is of great interest to nanoscience. Here we report the layer-by-layer assembly of 2D perovskite nanosheet building blocks. Structural analysis reveals that the assembled superlattice nanocrystals match with the layered Ruddlesden-Popper perovskite phase. This assembly proves reversible, as these superlattice nanocrystals can be reversibly exfoliated back into their building blocks via sonication. This study demonstrates the opportunity to further understand and exploit thermodynamics to increase order in a system of nanoparticles and to study emergent optical properties of a superlattice from 2D, weakly attracted, perovskite building blocks.

Original languageEnglish (US)
Pages (from-to)13028-13032
Number of pages5
JournalJournal of the American Chemical Society
Volume141
Issue number33
DOIs
StatePublished - Aug 21 2019

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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