title: Assembling Ordered Nanorod Superstructures and Their Application as Microcavity Lasers.
abstract: Herein we report the formation of multi-layered arrays of vertically aligned and close packed semiconductor nanorods in perfect registry at a substrate using electric field assisted assembly. The collective properties of these CdSexS1-xnanorod emitters are harnessed by demonstrating a relatively low amplified spontaneous emission (ASE) threshold and a high net optical gain at medium pump intensity. The importance of order in the system is highlighted where a lower ASE threshold is observed compared to disordered samples.
authors.affiliation: Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
authors.forename: Pai
authors.initials: P
authors.lastname: Liu
authors.affiliation: Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
authors.forename: Shalini
authors.initials: S
authors.lastname: Singh
authors.affiliation: Bernal Institute University of Limerick, Limerick, Ireland.
authors.forename: Yina
authors.initials: Y
authors.lastname: Guo
authors.affiliation: Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Wang
authors.affiliation: The School of Physics and Technology, The Institute for Advanced Studies and The Center for Nanoscience and Nanotechnology, Wuhan University, Wuhan, 430072, China.
authors.forename: Hongxing
authors.initials: H
authors.lastname: Xu
authors.affiliation: Department of Physics and Bernal Institute, University of Limerick, Limerick, Ireland.
authors.forename: Christophe
authors.initials: C
authors.lastname: Silien
authors.affiliation: Department of Physics and Bernal Institute, University of Limerick, Limerick, Ireland.
authors.forename: Ning
authors.initials: N
authors.lastname: Liu
authors.affiliation: Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
authors.forename: Kevin M
authors.initials: KM
authors.lastname: Ryan