Figure 1

Optical properties of Oleylamine–Acetone sample. (A) Oleylamine–Acetone sample at the time of mixing shows absorption maximum at 350 nm in the UV region, but after an aging process for 1 month it shows a red shifted absorption maximum at 585 nm. (B) The corresponding samples emission spectra show red shifted wavelengths. The images (a, b) in the insect of (B) denotes the blue and orange emission colours from Oleylamine–Acetone sample, respectively corresponding to the time of mixing and aged samples, under UV and Green wavelength excitations. Figures (C,D) are the absorption and emission spectra recorded from Oleylamine–Acetone aged sample at different levels of dilution. The spectra have shown the dilution caused shift in both the absorption and emission peak positions. As dilution increases then a blue shifted absorption and emission wavelength were noticed.