We proposed an all-inorganic multi-color converter based on Eu3+-doped phosphor-in-glass (PiG) for high-power white light-emitting diodes (WLEDs). The Eu3+-doped PiG was fabricated by screen-printing and low-temperature sintering a green phosphor into a Eu3+-doped glass matrix, which was prepared by a lead-free and low-melting glass frit doped with Eu3+ ions. When the Eu3+ doping content increases from 0.5 to 5 mol%, the transmittance of Eu3+-doped glass matrix is reduced while the red emission intensity is increased. In addition, with the green phosphor mass ratio of 30%, the Eu3+-doped PiG based WLEDs achieve a warm white light with a correlated color temperature (CCT) of 4496 K and a color rendering index (CRI) of 82 at the driving current of 350 mA. These results indicate that the Eu3+-doped PiG is a promising multi-color converter for high-power WLEDs.
- Electronic and Photonic Packaging Division
All-Inorganic Multi-Color Converter Based on Eu3+-Doped Phosphor-in-Glass for White Light-Emitting Diodes
Peng, Y, Mou, Y, Xu, X, Cheng, H, Li, H, Chen, M, & Luo, X. "All-Inorganic Multi-Color Converter Based on Eu3+-Doped Phosphor-in-Glass for White Light-Emitting Diodes." Proceedings of the ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. San Francisco, California, USA. August 27–30, 2018. V001T04A002. ASME. https://doi.org/10.1115/IPACK2018-8225
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