Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Interpreting UV absorption spectra

  1. Apr 9, 2004 #1
    hello all

    i'm investigating the band gap of certain nanocrystallites in the powder form, using a Shimadzu spectrometer with the powder dissolved in ethanol. The spectra, however, come with several peaks in addition to the expected peak for absorption. This is not unexpected as transitions to defects and impurities should arise. What i don't understand is that the literature only reports smooth curves for similar work...!

    is it that the other peaks are removed, or a non-linear regression is used to analyze the data?

    please help?

  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Threads for Interpreting absorption spectra Date
I Why don't absorption and emission spectra "cancel out"? Apr 2, 2018
A Scherrer Formula and interpreting values Oct 18, 2016
I Fermi distribution interpretation Jun 24, 2016
A Interpreting FTIR spectrum May 17, 2016
Interpretation to ARPES measured Fermi surface May 18, 2014