title: Colloidal luminescent silicon nanorods.
abstract: Silicon nanorods are grown by trisilane decomposition in hot squalane in the presence of tin (Sn) nanocrystals and dodecylamine. Sn induces solution-liquid-solid nanorod growth with dodecylamine serving as a stabilizing ligand. As-prepared nanorods do not luminesce, but etching with hydrofluoric acid to remove residual surface oxide followed by thermal hydrosilylation with 1-octadecene induces bright photoluminescence with quantum yields of 4-5%. X-ray photoelectron spectroscopy shows that the ligands prevent surface oxidation for months when stored in air.
authors.affiliation: Department of Chemical Engineering, Texas Materials Institute, and Center for Nano- and Molecular Science and Technology, The University of Texas at Austin , Austin, Texas 78712-1062, United States.
authors.forename: Xiaotang
authors.initials: X
authors.lastname: Lu
authors.forename: Colin M
authors.initials: CM
authors.lastname: Hessel
authors.forename: Yixuan
authors.initials: Y
authors.lastname: Yu
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Bogart
authors.forename: Brian A
authors.initials: BA
authors.lastname: Korgel