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Why does the Förster resonance energy transfer exhibit $\frac{1}{r^6}$ scaling?
The title more or less contains my question - why does the Förster resonance energy transfer (FRET) (photon?)-based energy transfer mechanism, which folks sometimes use as a spectroscopic ruler to ...
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Quantum dot band gap energy equation
I have been looking into certain approximations for band gap energies in quantum dots and have found this paper (Band-structure-corrected local density approximation study of semiconductor quantum ...
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Why do shape and size have the greatest effect on the optical properties of nanoparticles?
The LSPR properties of nanoparticles depend on a number of factors, including shape, size, material, crystal structure, dielectric environment, etc. However, it has been consistently shown that shape ...
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If I have a chiral substrate, should I always assume that both enantiomers are present?
Considering the Sn1 reaction of (S)-2,3-dimethyl-3-pentanol, knowing that this molecule has a chiral carbon, should I always assume that both enantiomers are present, and therefore the products of a ...
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Is there a liquid crystal or similar material that gets cloudy when an electric field is applied, but is otherwise clear?
Is there a way to make a liquid, such as a liquid crystal material, transition from cloudy or clear and vice-versa using only electric current?
By cloudy, I mean, similar to the effect that ...
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What salts are/are not birefringent?
Is there a quick way to determine if a salt (or ionic compound in general) crystal should be birefringent from its formula without having to know/look up the crystal structure? When I'm looking for ...
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Rock that transfers image
This is a question that has been bugging me for over 15 years!
In high school while studying elements our teacher showed us a clear white rock or element.
It was simply flat on both sides but when ...
