I have seen many papers in which authors have calculated agglomeration number and fermi energy level. What is the significance of calculating these?
Agglomeration of nanoparticles changes their optical properties drastically, so it's pretty important to know.
Dear Adams,
Can you explain more, why it should change optical properties.
In the case of metal nanoparticles (Au, Ag), agglomeration drastically changes the optical properties of colloidal solutions due to the plasmon coupling. This coupling changes not only the far field response, but also the near field optical properties. In the interparticle region there is an enhancement of the electric field. In some cases, aggregates are better than isolated nanoparticles for sensing applications. See the articles below.
ACS nano 6 (4), 3441-3452
The Journal of Physical Chemistry C 117 (44), 23090-23107
hi akrema,
in pharmaceutical formulations, agglomeration calculation is one of the criteria to know the formulation stability. As agglomeration increases, the formulation becomes unstable and also the particle size and other properties also changes. so for developing a successful formulation, agglomeration calculation is mandatory.
regards
I would say not the calculation but the control, i.e. measurement is mandatory. I am not aware that a-priory calculation is able to do this.
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