About this deal
Some "remote phosphor" LED light bulbs use a single plastic cover with YAG phosphor for several blue LEDs, instead of using phosphor coatings on single-chip white LEDs. [87]
Success in research: First gallium-nitride LED chips on silicon in pilot stage" (PDF). Archived from the original (PDF) on September 15, 2012 . Retrieved 2012-09-15. . www.osram.de, January 12, 2012.Park, S. -I.; Xiong, Y.; Kim, R. -H.; Elvikis, P.; Meitl, M.; Kim, D. -H.; Wu, J.; Yoon, J.; Yu, C. -J.; Liu, Z.; Huang, Y.; Hwang, K. -C.; Ferreira, P.; Li, X.; Choquette, K.; Rogers, J. A. (2009). "Printed Assemblies of Inorganic Light-Emitting Diodes for Deformable and Semitransparent Displays" (PDF). Science. 325 (5943): 977–981. Bibcode: 2009Sci...325..977P. CiteSeerX 10.1.1.660.3338. doi: 10.1126/science.1175690. OSTI 1876039. PMID 19696346. S2CID 8062948. Archived from the original (PDF) on October 24, 2015.
Edwards, Kimberly D. "Light Emitting Diodes" (PDF). University of California, Irvine. p.2. Archived from the original (PDF) on February 14, 2019 . Retrieved January 12, 2019. functional LED side marker, right, long, slanted rubber arm, 2×0.75 mm² cable 0.5 m long with QS150 connector. This method involves coating LEDs of one color (mostly blue LEDs made of InGaN) with phosphors of different colors to form white light; the resultant LEDs are called phosphor-based or phosphor-converted white LEDs (pcLEDs). [107] A fraction of the blue light undergoes the Stokes shift, which transforms it from shorter wavelengths to longer. Depending on the original LED's color, various color phosphors are used. Using several phosphor layers of distinct colors broadens the emitted spectrum, effectively raising the color rendering index (CRI). [108] When it comes to efficiency, PeLEDs have not surpassed commercial organic light-emitting diodes ( OLEDs) because specific critical parameters, such as charge carrier transport and optical output coupling efficiency, have not been thoroughly optimized. [123]
Izotov, Sergey; Sitdikov, Anton; Soldatkin, Vasily; Tuev, Vasily; Olisovets, Artem (2014). "Study of Phosphors for White LEDs". Procedia Technology. 18: 14–18. doi: 10.1016/j.protcy.2014.11.005.