Effects of the building block on the morphology and properties of porous CdSe nanostructured framework

Hongtao Yu, Robert Bellair, Rangaramanujam M. Kannan, Stephanie L. Brock

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A major challenge in designing and making potentially valuable nanostructures is to find suitable ways to effectively tune their properties and function. Recent work in our lab has demonstrated a powerful strategy to engineer the morphology and properties of metal chalcogenide 3-D nanostructured assemblies prepared by sol-gel methods. Here we show that by altering the shape of CdSe building blocks from dot to rod, the morphology of the gel can be altered from colloidal to polymeric. Notably, the polymeric (rod) aerogel has twice the surface area of the colloidal (dot) aerogel. Rheological studies of aerogel-PDMS (polydimethylsiloxane) composites indicate that the rod aerogel structure is stronger than the dot aerogel, and the reinforcement is due to the structure of the gel, not the particle geometry. Finally, in addition to dots and rods, the morphological consequences of CdSe branched and hyperbranched nanoparticles on resultant aerogels will also be discussed.

Original languageEnglish (US)
Title of host publicationTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Pages316-319
Number of pages4
StatePublished - Oct 13 2008
Externally publishedYes
Event2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 - Quebec City, QC, United States
Duration: Jun 1 2008Jun 5 2008

Publication series

NameTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Volume1

Other

Other2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008
CountryUnited States
CityQuebec City, QC
Period6/1/086/5/08

Keywords

  • CdSe nanodots
  • CdSe nanorods
  • Gel stength
  • Morphology

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Effects of the building block on the morphology and properties of porous CdSe nanostructured framework'. Together they form a unique fingerprint.

Cite this