Abstract
We have reported that a series concentration of Eu3+ doped CdSSe quantum dots (QDs) within silicate glass has good luminescent properties synthesized via conventional melt-quenching method. The crystal structure and photoluminescence (PL) properties were studied by a field-emission transmission electron microscope (TEM) and fluorescence spectrophotometer, respectively. The results of tests indicated that CdSSe QDs was formed within silicate glass and Eu3+ ions have been successfully doped into CdSSe crystals. Compared with the un-doped CdSSe QDs, the optical properties of Eu3+ doped CdSSe QDs enhanced effectively. After mounted with 395 nm light-emitting diodes (LEDs), the color temperature and color coordinates could be adjusted by turning content of Eu3+ ions. The energy transfer from CdSSe QDs to Eu3+ ions was confirmed by decay life. The main energy transfer mechanism is quadrupole-quadrupole interaction.
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