Fig. 1. Flow flow of CdSe quantum dot sensitization

Fig. 2. Schematic of CdSe QDs/GaAs band structure

Fig. 3. XRD spectrum of CdSe QDs/GaAs sample

Fig. 4. SEM image of CdSe QDs/GaAs sample

Fig. 5. PL spectra of CdSe QDs/GaAs sample and GaAs substrate at temperature of 10 K

Fig. 6. Test results of CdSe QDs/GaAs. (a) Results of PL variable-temperature test; (b) peak position as a function of temperature

Fig. 7. Experimental result and fitting curve of E4 peak position varying with temperature

Fig. 8. PL spectraof CdSe QDs/GaAs sample under variable powers at temperature of 10 K

Fig. 9. Measured results and fitting curves of different luminescence peak positions. (a) Integrated intensities and fitting curves of D1, D2, and D3 variable-power luminescence peak positions; (b) measured results and fitting curve of D4 peak position varying with power density