What would be the refractive index for BiFeWO6 nanoparticles? Can we use the refractive index calculated from the uv vis readings? does it change with the size of BiFEWO6 nanoparticles? Does the refractive index calculated from UV-Vis band gap data used for DLS(dynamic light scattering) size determination?
The refractive index dictates the interaction between light and nanoparticles. The amount of scattering or extinction by a particle is a function of size, refractive index, and the wavelength of light being utilized. The larger size the shorter the wavelength (blue shifted). Thus semiconductor nanomaterials absorb and emit light at certain wavelengths that depend strongly on both particle size and shape due to these quantum confinement effects. Smaller particles have a wider band gap.
The incident light and nanoparticles can be related to the refractive index . It may be used to calculate particle size. The energy bandgap is inversely proportional to the particle size,
Yes, it does change with the nano-particle size, but what changes is the effective refractive index
I am working on effect of gold nanoparticles size on photoelectric parameters of silicon solar cells. During my researches, I found the refractive index of gold nanoparticles changed depend on the size of nanoparticles. Because, materials have main two properties: bulk and size dependent. Size dependent properties of materials is appeared in nano-scale.
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