@article {1208, title = {Self-assembly of platinum nanoparticles of various size and shape}, journal = {Journal of Physical Chemistry A}, volume = {105}, number = {23}, year = {2001}, note = {Petroski, JM Green, TC El-Sayed, MA}, month = {Jun}, pages = {5542-5547}, abstract = {The addition of dodecanethiol to a polydisperse platinum colloidal aqueous solution capped with acrylic acid leads to self-assembled monolayers which not only contain various sizes, but also various shapes of nanoparticles. Assembled monolayers arranged in hcp arrays are achieved for mixed shape-samples. In;the case of the assembly of cubic nanoparticles, cubic closest packing is achieved when the size difference between the nanoparticles is less than 25\% (or between 6 and 8 nm). The ccp array is disrupted when the size difference is between 25 and 60\% or there is a mixture of shapes. Finally, size segregation is seen in regions where the size difference is more than 60\% with the resultant assembly being hcp no matter what the shape.}, isbn = {1089-5639}, doi = {10.1021/jp0019207}, author = {Petroski, J. M. and Green, T.C. and El-Sayed, Mostafa A} }