Tailoring the structure of nanopyramids for optimal heat generation

Warefta Hasan, Christopher L. Stender, Min Hyung Lee, Colleen L. Nehl, Jeunghoon Lee, Teri W. Odom

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

This paper investigates how structural features of noble metal nanoparticles affect their photothermal properties. Using PEEL, we fabricated a range of Au nanopyramid-like particles with surface plasmon resonances tunable from visible to near-infrared wavelengths. By systematically varying geometric parameters including size, shell thickness, and presence or absence of tips, we determined which factors were most important in heat generation. For solutions with the same Au content, we discovered that pyramidal particles with thin shells and having sharp tips showed the largest photothermal response.

Original languageEnglish (US)
Pages (from-to)1555-1558
Number of pages4
JournalNano letters
Volume9
Issue number4
DOIs
StatePublished - Apr 8 2009

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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