Fig. 3
Absorption spectra of the solutions of the Cu precursor in en (green line), deionized water (blue line), and the mixture of en and deionized water (violet line)
Fig. 3 | Nanoscale Research Letters
Absorption spectra of the solutions of the Cu precursor in en (green line), deionized water (blue line), and the mixture of en and deionized water (violet line)