Bright white light emission from blue emitting carbon dot-coated Dy3+-doped luminescent glasses

The coupling of blue emitting carbon dots with Eu3+/Tb3+ co-doped luminescent glasses for utilization in white light emitting diodes

“…CCT, CRI, and color purity, of BCDcoated luminescent glasses require further improvement. 39 Therefore, in this work, yellowish-orange emitting Eu 3+ /Tb 3+ co-doped luminescent glasses with high emission intensity are synthesized using the melt-quenching method and subsequently coated with BCDs to compensate for the lack of blue light emission to develop WLEDs with excellent CRI and tunable CCT values. Accordingly, Eu 3+ /Tb 3+ doped glasses are prepared in different thicknesses, i.e., 0.8, 1 and 1.5 mm, for adjustable PLQY values and then coated (in 1, 3, 5, or 7 layers) with polymer-reinforced BCD solution to achieve brilliant white light emission.…”