We study the influence of the size and nanocrystallinity of dodecanethiol- coated gold nanocrystals (NCs) on the stiffness of 3D selfassembled NC superlattices (called supracrystals). Using single domain and polycrystalline NCs as building blocks for supracrystals, itis shown that the stiffness of supracrystals can be tuned upon change in relative amounts of single and polycrystalline NCs.
Source : Assessing the Relevance of Building Block Crystallinity for Tuning the Stiffness of Gold Nanocrystal Superlattices. C.Yan, H. Portalès, N. Goubet, I. Arfaoui, S. Sirotkin, A. Mermet and M.P. Pileni Nanoscale, 2013, 5, 9523–9527.