@article{771ae2be267545bb9b0b633acc2d42b9,
title = "Self-Assembly of Two-Dimensional Perovskite Nanosheet Building Blocks into Ordered Ruddlesden-Popper Perovskite Phase",
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.",
author = "Yong Liu and Martin Siron and Dylan Lu and Jingjing Yang and {Dos Reis}, Roberto and Fan Cui and Mengyu Gao and Minliang Lai and Jia Lin and Qiao Kong and Teng Lei and Joohoon Kang and Jianbo Jin and Jim Ciston and Peidong Yang",
note = "Funding Information: This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, under Contract No. DE-AC02-05-CH11231 within the Physical Chemistry of Inorganic Nanostructures Program (KC3103). GISAXS and GIWAXS measurements were carried out at beamline 7.3.3 at the Advanced Light Source, supported by the U.S. Department of Energy. TEM characterization work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. R. dR. and J.C. acknowledge support from the U.S. Department of Energy Early Career Research Program. Y.L. acknowledges the fellowship support from the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and the International Postdoctoral Exchange Fellowship Program (No. 20160051). M.S. acknowledges fellowship support from the National Science Foundation Graduate Research Fellowship Program. J.K. also acknowledges IBS Global Postdoctoral Fellowship Award (IBS-R026-D1). We thank C. Zhu for the help with GIWAXS and fruitful discussions. We thank Y. Zhang and S. Wang for the AFM characterization. Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",
year = "2019",
month = aug,
day = "21",
doi = "10.1021/jacs.9b06889",
language = "English (US)",
volume = "141",
pages = "13028--13032",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "33",
}