Table 1

Preparation conditions and properties of CdTe 0.5Se0.5 cores and CdTe0.5Se0.5/Cd0.5Zn0.5S core/shell QDs
Sample Reaction time (min) Reaction temperature (°C) Composition PL peak wavelength (nm) PL efficiency (%) FWHM (nm)
1 2.5 280 CdTe0.5Se0.5 573.4 0.9 23.6
2a 6 220 CdTe0.5Se0.5/Cd0.5Zn0.5S 700.4 48.3 65.2
3 2.5 280 CdTe0.5Se0.5 576.4 1.1 38.4
4a 11 200 CdTe0.5Se0.5/Cd0.5Zn0.5S 656.2 52.2 64.4

aThese samples were prepared by using samples 1 and 3, respectively.

Yang et al.

Yang et al. Nanoscale Research Letters 2012 7:615   doi:10.1186/1556-276X-7-615

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