August 15, 2020, 01:16:50 AM
Forum Rules: Read This Before Posting


Topic: relation between LSPR peak and size of nanoparticles  (Read 3777 times)

0 Members and 1 Guest are viewing this topic.

Offline parisa-fateh

  • Regular Member
  • ***
  • Posts: 12
  • Mole Snacks: +0/-0
relation between LSPR peak and size of nanoparticles
« 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?

Offline Corribus

  • Chemist
  • Sr. Member
  • *
  • Posts: 2917
  • Mole Snacks: +451/-22
  • Gender: Male
  • A lover of spectroscopy and chocolate.
Re: relation between LSPR peak and size of nanoparticles
« Reply #1 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

What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Sponsored Links