Fig. 2: Effect of Zn precursors on optical and structural properties of InAs QDs.
From: Chemically and electronically active metal ions on InAs quantum dots for infrared detectors
UV‒vis-NIR absorption spectra of a InAs QDs synthesized with Zn/In molar ratios from 0 (black) to 2 (yellow), b normalized PL spectra of InAs QDs with different molar ratios of Zn/In from 0 (black) to 2 (red), c XRD patterns of InAs QDs with changing Zn/In molar ratio from 0 (black) to 2 (yellow) and the reference data (brown bar, JCPDS No. 01-070-2514), d plot of the Zn/In ratios based on the molar proportions of In, As, and Zn determined with ICP‒OES, e InAs QDs synthesized at temperatures of 200–280 °C in 20 °C steps, and f InAs:Zn QDs synthesized at temperatures of 200–280 °C in 20 °C steps (the asterisk (*) symbol indicates an absorption peak for oleylamine since the spectra were measured without purification).
