Why are my UV-Vis spectra like this?

I made gold nanorods based on this recipe; seed solution: 7.5ml (0.2M) CTAB, 2.5ml (0.001M) HAuCl4.3H2O, and 0.6ml (0.01M) ice-cold NaBH4. growth solution: 5ml (0.2M) CTAB, 5ml (0.001M)...

26 June 2017 4,706 5 View