Indian Science Technology and Engineering facilities Map
Supplier Map
Service Map


Publication Details

Central University of Tamil Nadu 
Koppole Kamakshi, JPB Silva, KC Sekhar, J Agostinho Moreira, A Almeida, Mário Pereira, MJM Gomes 
Corresponding Authors:
Koppole Kamakshi, K. C. Sekhar 
DOI #: 
Substrate temperature effect on microstructure, optical, and glucose sensing characteristics of pulsed laser deposited silver nanoparticles 
1235 – 1241 
Surface plasmon resonance, AgNP thin film, Glucose sensing 
This work reports the substrate temperature-influenced change in the structural, morphological, optical, and glucose sensing properties of silver (Ag) nanoparticles (NPs) deposited on p-type Si (100) wafers. AgNP films grown at temperatures ranging from RT to 600 °C clearly show a dependence of orientation texture and surface morphology on substrate temperature (T s). As T s increases from RT towards 600 °C, the preferred orientation of AgNP film changes from (111) to (200). The AgNPs size, that is T s-dependent, reaches the maximum value at T s = 300 °C. This result is attributed to restructuring of AgNPs texture. Moreover, the AgNP shape also changes from ellipsoid to sphere as T s increases from RT to 600 °C. Surface plasmon enhancement in photoluminescence intensity is observed with increase in T s. It is found also that the AgNP film deposited at 300 °C has considerable reflectance reduction relative to the silicon substrate, in wavelength range of 300–800 nm and a progressive red shift of localized surface plasmon resonances caused by the adding of increasing quantities of glucose has been observed. As a proof of concept, we also demonstrate the capability of grown AgNP substrates for glucose detection based on surface enhanced Raman spectroscopy in physiological concentration range with short integration time 10 s, varying with Ts. 
Entered by:
Koppole Chandra Sekhar on 2020-09-07 
I-Mitra(आई-मित्र) Welcomes You..
It has always been the basic tenet of the Government of India, in generously funding R&D efforts at academic institutions over the years, that facilities established through such support be made available to those needing them and qualified to make use of them for their own research work

However, this was never easy or straightforward for, among other reasons, there was no ready source of information of what facility was available and where. Thanks to the Web, it is much easier today to have a national and regional “inventory of resources”, so as to match users with the resources they need, and to do all this in an efficient and transparent manner.

This can lead to a leap in R&D productivity and greatly enhance the effectiveness of public investment. This is the motivation behind I-STEM.
read less <<
Visitor Hit Counter
Hosted at Indian Institute of Science
Copyright © 2020 I-STEM. All rights reserved.
Audited by: STQC Bengaluru.