@article{5ae3af17db6f4a4b9932b04033cda27e,
title = "Arrays of Colloidal Single Crystals Engineered with DNA in Lithographically Defined Microwells",
abstract = "Lithographically defined microwell templates are used to study DNA-guided colloidal crystal assembly parameters, including superlattice position, habit orientation, and size, in an effort to increase our understanding of the crystallization process. In addition to enabling the synthesis of arrays of individual superlattices in arbitrary predefined patterns, the technique allows one to study the growth pathways of the crystals via ex situ scanning electron microscopy. Importantly, a Volmer-Weber (VM) (island formation)-like growth mode is identified, which has been reproduced via simulations. Notably, both experiment and simulation reveal that the crystallites merge and reorient within the microwells that defined the crystal growth to form single-crystalline structures, an observation not common for VM pathways. The control afforded by this platform will facilitate efforts in constructing metamaterials from colloidal crystals as well as their integration into optical devices and applications.",
keywords = "DNA-mediated assembly, colloidal crystals, confinement, crystallization, nanoparticles",
author = "Wong, {Alexa M.} and Kwanghwi Je and Zheng, {Cindy Y.} and Liban Jibril and Ziyi Miao and Glotzer, {Sharon C.} and Mirkin, {Chad A.}",
note = "Funding Information: This material is based upon work supported by the Air Force Office of Scientific Research award FA9550-22-1-0300 and the Sherman Fairchild Foundation, Inc. A.M.W. and L.J. were supported by the National Science Foundation Graduate Research Fellowship Program under Grants DGE-1842165 and DGE-1842165, respectively. C.Y.Z. was supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education (ORISE) for the DOE. ORISE is managed by ORAU under contract DE-SC0014664. All opinions expressed in this paper are those of the author{\textquoteright}s and do not necessarily reflect the policies and views of DOE, ORAU, or ORISE. This work made use of the EPIC facility of Northwestern University{\textquoteright}s NUANCE Center, which has received support from the SHyNE Resource (NSF ECCS-2025633), the IIN, and Northwestern{\textquoteright}s MRSEC program (NSF DMR-1720139). S.C.G and K.J. were supported as part of the Center for Bio-Inspired Energy Science, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award DE-SC0000989. K.J. also acknowledges support from the University of Michigan Rackham Predoctoral Fellowship Program. Computational work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562 and XSEDE award DMR 140129 and was also supported through Advanced Research Computing at the University of Michigan, Ann Arbor. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. Publisher Copyright: {\textcopyright} 2023 American Chemical Society. All rights reserved.",
year = "2023",
month = jan,
day = "11",
doi = "10.1021/acs.nanolett.2c03713",
language = "English (US)",
volume = "23",
pages = "116--123",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "1",
}