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Quaternary combinatorial library for silicate systems in terms of luminance at 405 nm excitation.
(Color online) (a) Ternary combinatorial library for -activated under an excitation light wavelength of 405 nm. (b) Ternary combinatorial library for -activated under an excitation light wavelength of 465 nm.
Photoluminescence spectra of individual codoped (solid line), (dotted line), and two-phosphor blend (dash-dotted line). Emission spectrum of a white light-emitting InGaN-based two-phosphor blend LED under a 20-mA drive current are shown in the inset. Spectrum was measured with a 50-cm single-grating monochrometer under a forward bias of 20 mA.
CIE chromaticity points of InGaN-based two-phosphor blend LED and commercially available LED.
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