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One‐Dimensional Arrangement of Gold Nanoparticles with Tunable Interparticle Distance
Author(s) -
Jiang Lin,
Wang Wenchong,
Fuchs Harald,
Chi Lifeng
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200900770
Subject(s) - groove (engineering) , nanoparticle , particle (ecology) , materials science , nanotechnology , colloidal gold , lithography , ionic strength , layer (electronics) , ionic bonding , optoelectronics , physics , chemistry , ion , geology , oceanography , quantum mechanics , aqueous solution , metallurgy
The 1D and 2D arrangement of Au nanoparticles is achieved in the larger grooves (up to 220nm wide) of lithographic patterns on a solid surface (see picture). The average distance between adjacent nanoparticles is tuned by reducing the width of the grooves and increasing the ionic strength of the Au solution. The groove width and thickness of the electric double layer of the particle govern the arrangement of the nanoparticles.