Shape Control in Gold Nanoparticle Synthesis
- Marek Grzelczak 1
- Jorge Pérez-Juste 2
- Paul Mulvaney 3
- Luis Liz-Marzán 4
- 1 Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
- 2 Department of Physical Chemistry and Biomedical Research Center (CINBIO), University of Vigo, As Lagoas-Marcosende, 36310 Vigo, Spain
- 3 Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC, 3010 Australia
- 4 CIC biomaGUNE and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
- Luis Liz-Marzán (coord.)
Publisher: Jenny Stanford Publishing
ISBN: 9780429295188, 9789814800679
Year of publication: 2020
Pages: 197-216
Type: Book chapter
Abstract
This chapter summarises some of the emerging protocols for shape control of gold nanocrystals, and examines some of the mechanisms currently proposed to help explain this important advance in materials science. C. Lofton and W. Sigmund provided the first such review in 2005, focusing on the crystallographic aspects of shape control, including twinning. The focus is on how different chemical environments appear to promote the growth of different shapes, from platonic solids through to rods and branched metal nanocrystals. The growth of gold nanorods is, within the field of anisotropic nanoparticle synthesis, the most established protocol, in terms of the degree of control of the size, shape and monodispersity. Of the reported procedures for gold rod formation, seed-mediated growth has been by far the most efficient and popular approach. Other types of anisotropic nanoparticles include triangular or hexagonal plates.