Journal
OPTIK
Volume 248, Issue -, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2021.168097
Keywords
Perovskite quantum dot; WLED; Borosilicate glass; YAG phosphor
Categories
Funding
- Science and Technology Planning Project of Zhejiang Province, China [2018C01046]
- Shanghai Sailing Program [J2019-274, J2019-165, J2019-281, J2019-312, J2020-34, J2020-36, J 2020-252, J 2020-289, 18YF1422500]
- Shanghai Institute of Technology [YJ2018-9]
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YAG phosphor composited with CsPb(BrI)(3) nanocrystals in glass was successfully synthesized using a Two-step melting method. By adjusting the mixing ratio, the photoluminescence properties and color characteristics could be controlled, leading to the preparation of a high-performance wLED.
Here, YAG phosphor in tellurite glass composited with CsPb(BrI)(3) nanocrystals embedded borosilicate glass have been successfully synthesized by Two-step melting method. The phase and morphology characterization proved that YAG and CsPb(BrI)(3) nanocrystals existed in the prepared composite glass. The photoluminescence properties and color characteristics could be easily controlled by adjusting the mixing ratio of phosphor and quantum dot powder. In addition, by combining the phosphor and perovskite quantum dot glass composite material with a blue lightemitting diode, a white light-emitting diode (wLED) was successfully prepared. After a series of adjustments, the chromaticity coordinates (CIE) of the optimized high-performance wLED is (0.3376, 0.3531), the correlated color temperature (CCT) is 5299 K, and the color rendering index (Ra) is up to 86, which higher than that of the wLED packaged by single phosphor glass.
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