Research Symposium

BIO

I am a first year international student from Barbados majoring in chemistry. I hope to explore research in various areas of chemistry, from physical chemistry to organic chemistry.

Investigation of the Photophysics of W03-x

Abstract

The interaction between incident light and nanoparticles leads to a confined high intensity non-propagating wave known as localized surface plasmon resonance (LSPR). The LSPR can be tuned across the optical spectrum from visible to far-infrared by controlling the concentration of free carriers. This can be done by altering the dopant type, concentration, and distribution in the nanoparticle. Increasing dopant concentration increases the free carrier concentration, shifting the LSPR to a higher energy level. Furthermore, the type of dopant and is distribution changes the overall electron scattering which also impact the LSPR. In this review I studied the impact of dopant type and concentration on determining the LSPR characteristics of semiconductor nanoparticles. Specifically, how doping the metal oxide, tungsten oxide, with varying concentrations of manganese will impact the LSPR of the metal oxide. This was done by synthesizing a sample of manganese doped tungsten oxide. The samples are still undergoing analysis as to how this impacts the LSPR characteristics and results are currently still in development.

Keywords: chemistry, nanoparticles, tungsten oxide