Fig. 7
From: Benefitting from Dopant Loss and Ostwald Ripening in Mn Doping of II-VI Semiconductor Nanocrystals
Absorption/PL spectra of Mn-doped CdS NCs at the indicated growth times before (a) and after (b) surface exchange/passivation. PL spectra in ( a) were collected at excitation wavelength of 350 nm for growth times of 5 and 10 min; 380 nm for 15, 25, 30, and 35 min; 420 nm for 50 min to accommodate absorption onset at shorter wavelengths for smaller NCs in earlier stages of growth. Spectra are offset for clarity. All PL spectra are normalized to the absorbance at the excitation wavelength