I am trying to coat glass with AuNPs, but my lab equipment is...lacking. I basically deposit a large droplet of my AuNP solution on the glass and let it dry overnight. The next day, the glass has a darker black ring on the surface, but I can't tell if the nanoparticles are adhered properly. I'm unsure if what I see is just the residual suspension fluid that has dried, or if it is a nanoparticle coating.
I am very new to AuNPs so any advice would be appreciated!
You can use a very simple microscope to check. A simple one only costs less than 50 dollars.
Hi
Can use high-temperature annealing of the Au NP film, leading to partial embedding in the glass substrate and stabilization of the morphology and optical properties.
Then check with microscop.
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