High luminescent properties of Eu3+-doped CdSSe quantum dots within silicate glass for WLED

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.

Automated summary

Eu3+ doped CdSSe quantum dots synthesized via conventional melt-quenching method within silicate glass exhibit good luminescent properties. The crystal structure and photoluminescence properties were studied using a field-emission transmission electron microscope and fluorescence spectrophotometer, respectively. The results show that CdSSe quantum dots were formed in the silicate glass and Eu3+ ions were successfully doped into CdSSe crystals. Compared to undoped CdSSe quantum dots, the optical properties of Eu3+ doped CdSSe quantum dots were significantly enhanced. The color temperature and color coordinates could be adjusted by varying the content of Eu3+ ions when coupled with 395 nm LEDs. Energy transfer from CdSSe quantum dots to Eu3+ ions was confirmed through decay life measurements, whereby the main energy transfer mechanism was identified as quadrupole-quadrupole interaction.