Meder, FabianFabianMederThomas, Steffi S.Steffi S.ThomasBollhorst, TobiasTobiasBollhorstDawson, Kenneth A.Kenneth A.Dawson2021-05-182021-05-182018 Ameri2018-03-26Nano Letters1530-6984http://hdl.handle.net/10197/12163Surface-patterning colloidal matter in the sub-10 nm regime generates exceptional functionality in biology and photonic and electronic materials. Techniques of artificially generating functional patterns in the small nanoscale advanced in a fascinating manner in the last several years. However, they remain often restricted to planar and noncolloidal substrates. Patterning colloidal matter in solution via bottom-up assembly of smaller subunits on larger core particles is highly challenging because it is necessary to force the subunits onto randomly moving objects. Consequently, the non-equilibrium conditions present during nanoparticle self-assembly are difficult to control to eventually achieve the desired material structures. Here, we describe the formation of surface patterns with intrinsic periodic repeats of 8.9 ± 0.9 nm and less on hard, amorphous colloidal core particles by assembling binary nanoparticle superlattices on the curved particle surface. The colloidal environment is preserved during the entire bottom-up crystallization of variable building blocks (here, monodispersed 5 nm Au and 2.4 nm Pd nanoparticles (NPs) and 230 nm SiO core particles) into AB -like, binary, and isotropic superlattice domains on the amorphous cores. The three-dimensional, bottom-up assembly technique is a new tool for patterning colloidal matter in the sub-10 nm surface regime for gaining access to multicomponent metamaterials for bionanoscience, photonics, and electronics. 2 13Print-ElectronicenThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © 2018 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.8b00173.NanostructuringColloidal crystalsSurface functionalizationEntropy-driven formationNanocrystal superlatticesCrystalsMicrocapsulesJournal Article1842511251810.1021/acs.nanolett.8b001732021-05-1412/IA/1422ME 4296/1-1. S.S.T.GOIPG/2013/104MA4795/5-1 and /5-2https://creativecommons.org/licenses/by-nc-nd/3.0/ie/