Fluorescence enhancement by heterostructure colloidal photonic crystals with dual stopbands

Heng Li; Jingxia Wang; Feng Liu; Yanlin Song; Rongming Wang

doi:10.1016/j.jcis.2010.12.078

Fluorescence enhancement by heterostructure colloidal photonic crystals with dual stopbands

J Colloid Interface Sci. 2011 Apr 1;356(1):63-8. doi: 10.1016/j.jcis.2010.12.078. Epub 2011 Jan 3.

Authors

Heng Li¹, Jingxia Wang, Feng Liu, Yanlin Song, Rongming Wang

Affiliation

¹ Key Laboratory of Micro-nano Measurement-Manipulation and Physics, Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing, China.

PMID: 21281939
DOI: 10.1016/j.jcis.2010.12.078

Abstract

In this work, we present a facile approach on the remarkable enhancement of fluorescent signal by heterostructure colloidal photonic crystals (PCs) with dual stopbands. The intensity of fluorescent medium on heterostructure PCs with dual stopbands overlapping the excitation wavelength and the emission wavelength of fluorescent medium can be up to 162-fold enhancement in comparison to that on the control sample. Otherwise, parameters of heterostructure PC films such as film thickness or stacking order have important effects on fluorescent signals. The method will be of great significance for developing the highly sensitive fluorescence-based detection.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Colloids / chemistry
Fluorescence*
Liquid Crystals / chemistry*
Liquid Crystals / ultrastructure*
Microscopy, Electron, Scanning
Molecular Probes / chemistry
Molecular Structure
Photons
Spectrometry, Fluorescence / methods*

Substances

Colloids
Molecular Probes