The optical properties of Cadmium Selenide quantum dots were explored in relation to their size and concentration. Quantum dots have a wide range of potential applications such as photovoltaics, optical displays and photocatalysts. UV-Vis, Atomic Absorption spectroscopy and electron microscopy were used to characterize the peak wavelength of absorbance, concentration and size, with smaller diameter crystals absorbing shorter wavelengths due to the effects of quantum confinement. The results were analyzed and used to determine the relationship between size, molar absorptivity and peak wavelengths absorbed. The procedure used is expected to be applicable to the characterization of other quantum dot materials in the future.

Size-dependent optical properties of cadmium selenide quantum dots

255th National Meeting (2018)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.