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Specialty Chemistry Forums => Materials and Nanochemistry forum => Topic started by: parisa-fateh on November 17, 2017, 07:49:44 AM

Title: relation between LSPR peak and size of nanoparticles
Post by: parisa-fateh on November 17, 2017, 07:49:44 AM

Is it true that with the size increasing of the certain nanoparticles the UV-Vis absorbance will has the blue shift?

Title: Re: relation between LSPR peak and size of nanoparticles
Post by: Corribus on November 17, 2017, 01:30:26 PM

Not often - the lowest energy absorption of semiconductor particles blues shifts when particles get smaller, due to increased electron confinement. The SPR peak maxima of silver nanoparticles (which has a different physical origin) also are blue-shifted for smaller particles.

https://www.sigmaaldrich.com/technical-documents/articles/materials-science/nanomaterials/silver-nanoparticles.html