Figure 4From: A high color purity red emitting phosphor CaYAlO4:Mn4+ for LEDs PLE spectra of CYA: Mn 4+ x (x = 0.001, 0.005, 0.01, 0.03, 0.05); Inset is chromaticity coordinates of CYA: Mn 4+ 0.005 (λ ex = 370 nm). Back to article page