In Situ Observation of Single Au Triangular Nanoprism Etching to Various Shapes for Plasmonic Photocatalytic Hydrogen Generation

In situ etching of single Au triangular nanoprism (TNP) was successfully monitored by the plasmonic photoluminescence (PL) spectra using single-particle microscopy, which provides clear results to understand the geometric and anisotropic dependence of surface plasmon resonance in Au nanostructures....

Full description

Saved in:
Bibliographic Details
Published inACS nano Vol. 11; no. 1; pp. 968 - 974
Main Authors Lou, Zaizhu, Kim, Sooyeon, Zhang, Peng, Shi, Xiaowei, Fujitsuka, Mamoru, Majima, Tetsuro
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 24.01.2017
Subjects
Au triangular nanoprism
plasmonic photocatalysis
single-particle spectroscopy
hydrogen generation
in situ reaction
Online AccessGet full text

Cover

More Information
Summary:In situ etching of single Au triangular nanoprism (TNP) was successfully monitored by the plasmonic photoluminescence (PL) spectra using single-particle microscopy, which provides clear results to understand the geometric and anisotropic dependence of surface plasmon resonance in Au nanostructures. Various Au nanostructures (TNP, obtuse TNP (O-TNP) and nanodisk) were obtained to synthesize anisotropic Pt–Au as plasmonic photocatalyts for hydrogen generation. Single-particle PL spectra and finite-difference time-domain simulations demonstrate that the Pt-edged Au O-TNP has larger tip area and higher plasmon enhanced electrical field for hot electron transfer and charge separation, leading to more efficient photocatalytic hydrogen generation.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1936-0851
1936-086X
1936-086X
DOI:10.1021/acsnano.6b07581