Red-emitting Ba₂Si₅N₈Eu²⁺ conversion phosphor: A new selection for enhancing the optical performance of the in-cup packaging MCW-LEDs

Figures & data

Figure 1. (a) The MCW-LED product of the Siliconware Precision Industries Co., Ltd., Taiwan. (b) Illustration of MCW-LEDs with the in-cup phosphor packaging.

Figure 2. Excitation and emission spectra of the Mn²⁺-activated Ba₂Si₅N₈ phosphor.

Figure 3. Scattering coefficients of the red-emitting phosphor Ba₂Si₅N₈Eu²⁺.

Figure 4. Reduced scattering coefficient of the red-emitting phosphor Ba₂Si₅N₈Eu²⁺ with wavelengths of 453, 555, and 680 nm.

Figure 5. Anisotropy coefficient of the red-emitting phosphor Ba₂Si₅N₈Eu²⁺ with wavelengths of 453, 555, and 680 nm.

Figure 6. Scattering amplitude of the red-emitting phosphor Ba₂Si₅N₈Eu²⁺ with wavelengths of 453, 555, and 680 nm.

Figure 7. The D-CCT at average CCTs of 7,000 K and 7,700 K.

Figure 8. The color quality scale (CQS) at average CCTs of 7,000 K and 7,700 K.

Figure 9. The CRI at average CCTs of 7,000 K and 7,700 K.

Figure 10. The lumen output at average CCTs of 7,000 K and 7,700 K.