Alkanethiol mediated release of surface bound nanoparticles fabricated by nanosphere lithography

Jing Zhao*, Amanda J. Haes, Xiaoyu Zhang, Shengli Zou, Erin M. Hicks, George C. Schatz, Richard P. Van Duyne

*Corresponding author for this work

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

3 Scopus citations

Abstract

This work presents an innovative approach to produce monodisperse solution-phase triangular silver nanoparticles with well-controlled geometry. Ag nanotriangles are fabricated by nanosphere lithography (NSL), functionalized with alkanethiol molecules and then released from the substrate into solution. The resulting single isolated nanoparticles are subsequently asymmetrically functionalized with alkanedithiol molecules to form dimer pairs. The optical properties of the Ag nanoparticles have been measured using UV-Vis spectroscopy while their structural properties have been characterized using atomic force microscopy (AFM) and transmission electron microscopy (TEM). Theoretical calculations based on Mie theory and the Discrete Dipole Approximation (DDA) method have been done to interpret the optical properties of the released Ag nanoparticles.

Original languageEnglish (US)
Title of host publicationNanoparticles and Nanostructures in Sensors and Catalysis
PublisherMaterials Research Society
Pages490-495
Number of pages6
ISBN (Print)1558998543, 9781558998544
DOIs
StatePublished - Jan 1 2005
Event2005 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 28 2005Dec 2 2005

Publication series

NameMaterials Research Society Symposium Proceedings
Volume900
ISSN (Print)0272-9172

Other

Other2005 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/28/0512/2/05

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Zhao, J., Haes, A. J., Zhang, X., Zou, S., Hicks, E. M., Schatz, G. C., & Van Duyne, R. P. (2005). Alkanethiol mediated release of surface bound nanoparticles fabricated by nanosphere lithography. In Nanoparticles and Nanostructures in Sensors and Catalysis (pp. 490-495). (Materials Research Society Symposium Proceedings; Vol. 900). Materials Research Society. https://doi.org/10.1557/proc-0900-o13-08