Abstract
At a temperature of 80–300 K, the photoluminescence of Cd(x)Zn(1-x)S nanocrystals (x = 0.2 and 0.5) formed in a Langmuir–Blodgett film was studied. Two peaks can be distinguished in the PL spectra: (i) a low-energy peak, which is portable and changes significantly with increasing zinc content in nanocrystals and temperature, and (ii) a high-energy peak, the position of which weakly depends on temperature and nanocrystal content. It was found that the high-energy peak is most pronounced at elevated temperatures (>290 K). Experimental data are performed by recombination through levels of deep centers associated with the intrinsic defects and behenic acid molecules on the surface of nanocrystals.
Published Version
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