Columnar Self-Assembly of Colloidal Nanodisks Saunders, Aaron E. ; Ghezelbash, Ali ; Smilgies, Detlef-M. ; Sigman, , Michael B. ; Korgel, Brian A. Abstract Publication: Nano Letters Pub Date: December 2006 DOI: 10.1021/nl062419e Bibcode: 2006NanoL...6.2959S