Improved SERS Sensitivity on Plasmon-Free TiO2 Photonic Microarray by Enhancing Light-Matter Coupling

Highly sensitive surface-enhanced Raman scattering (SERS) detection was achieved on plasmon-free TiO2 photonic artificial microarray, which can be quickly recovered under simulated solar light irradiation and repeatedly used. The sensitive detection performance is attributed to the enhanced matter-l...

Full description

Saved in:
Bibliographic Details
Published inJournal of the American Chemical Society Vol. 136; no. 28; pp. 9886 - 9889
Main Authors Qi, Dianyu, Lu, Liujia, Wang, Lingzhi, Zhang, Jinlong
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 16.07.2014
Subjects
irradiation
light scattering
lighting
microarray technology
photonics
Raman spectroscopy
titanium dioxide
wavelengths
Online AccessGet full text

Cover

More Information
Summary:Highly sensitive surface-enhanced Raman scattering (SERS) detection was achieved on plasmon-free TiO2 photonic artificial microarray, which can be quickly recovered under simulated solar light irradiation and repeatedly used. The sensitive detection performance is attributed to the enhanced matter-light interaction through repeated and multiple light scattering in photonic microarray. Moreover, the SERS sensitivity is unprecedentedly found to be dependent on the different light-coupling performance of microarray with various photonic band gaps, where microarray with band gap center near to laser wavelength shows a lower SERS signal due to depressed light propagation, while those with band gap edges near to laser wavelength show higher sensitivity due to slow light effect.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0002-7863
1520-5126
1520-5126
DOI:10.1021/ja5052632