From UV-vis you can get particle size..
Read this thread:
http://www.researchgate.net/post/Can_anyone_explain_how_to_calculate_particle_size_from_Uv-Vis_spectra
A possible line for projecting your data to physics audience is applicability of your Au nanoparticles in SERS..
You may get some help from the following paper:
Linear optical absorption and photoluminescence emission
properties of gold nanoparticles prepared by laser ablation
technique
H.S. Desarkar · P. Kumbhakar · A.K. Mitra
Appl Phys A (2012) 108:81–89
DOI 10.1007/s00339-012-7016-1
D=(1.6122×10-9)ƛ4 –(2.6575×10-6)ƛ3 +(1.6242×10-3)ƛ2 – (0.4277)ƛ +41.75
D is your particle size
From the TEM image you can calculate particle size, and relate it to your UV/Vis spectrum. From Uv Vis you can also find the excitation wavelength.
from UV - size, concentration and shape of curve can suggest shape as well... present datain the form of lambda max and absorbance...
TEM - size, size distribution, shape, crystal structure.. can show distribution as histogram..
If you have a dynamic system, for instance if you want to study binding of proteins to nanoparticles, with the use of some modelling, the shift in the position of the plasmon peak observed for Au NPs with UV-Vis can give you information about the amount of binding molecules. Also, shifts in the plasmon peak can show the dispersion state and you have or do not have aggregation/agglomeration in your system. Depending on the number and position of the signals in the UV-Vis spectrum, you can also tell something about the shape and size of your Au NPs.
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