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The Formation and Morphology of Nanoparticle Supracrystals
Author(s) -
Haubold Danny,
Reichhelm Annett,
Weiz Alexander,
Borchardt Lars,
Ziegler Christoph,
Bahrig Lydia,
Kaskel Stefan,
Ruck Michael,
Eychmüller Alexander
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201600186
Subject(s) - materials science , nanoparticle , trigonal crystal system , morphology (biology) , nanotechnology , substrate (aquarium) , mechanism (biology) , self assembly , chemical physics , chemical engineering , crystallography , crystal structure , chemistry , physics , biology , geology , engineering , quantum mechanics , oceanography , genetics
Supracrystals are highly symmetrical ordered superstructures built up from nanoparticles (NPs) via self‐assembly. While the NP assembly has been intensively investigated, the formation mechanism is still not understood. To shed some light onto the formation mechanism, one of the most common supracrystal morphologies, the trigonal structures, as a model system is being used to investigate the formation process in solution. To explain the formation of the trigonal structures and determining the size of the supracrystal seeds formed in solution, the concept of substrate‐affected growth is introduced. Furthermore, the influence of the NP concentration on the seed size is shown and our investigations from Ag toward Au are extended.