Could someone help me interpret my PL data?

08 October 2017 0 2K Report

I'm now studying about 'C-dot' and its "PL property"

This is the data that I got.

In terms of C-dot, the emission peak is dependent on excitation wavelength, right?

So I gave excitation wavelength of 296, 320, 330, 350 nm to my sample. This is the data of mine and I couldn't even find similar data in Google....

Is there something wrong in my experimental things or could someone help me interpret this data??

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