Jana, Debrina and Mandal, Abhijit and De, Goutam (2012) High Raman enhancing shape-tunable 013510 Ag nanoplates in alumina: a reliable and efficient SERS technique. ACS Applied Materials & Interfaces, 4 (7). pp. 3330-3334. ISSN 1944-8244

PDF - Published Version Restricted to Registered users only Download (3661Kb)

Abstract

Shape-tunable Ag nanoplates in alumina enable very strong SERS performances showing Raman enhancement factor >1 x 10(9), and allows for easy detection of analyte methylene blue having a concentration in the picomolar range. Raman enhancements have been systematically studied during the Ag nanoparticle-shape evolution from spherical nano particles to hexagonal nanoplates with sharp corners to truncated triangular nanoplates in alumina sol. Large SERS enhancement has been observed because of the uniform dispersion and embedment of Ag nanoplates in a relatively high dielectric alumina network where analyte molecules are held. This new approach gives uniform and strong SERS signal with reproducibility.

Item Type:	Article
Uncontrolled Keywords:	Ag nanoplates; SERS; low concentration detection; methylene blue; enhancement factor
Subjects:	Environment and Pollution
Divisions:	Nano-Structured Materials
Depositing User:	Bidhan Chaudhuri
Date Deposited:	18 Sep 2012 06:28
Last Modified:	18 Sep 2012 06:28
URI:	http://cgcri.csircentral.net/id/eprint/1788

Actions (login required)

View Item