Photoluminescence and LED application of β-SiAlON:Eu2+ green phosphor
Source abstract
Abstract
Abstract We successfully prepared β-SiAlON:Eu 2+ phosphors with composition of Eu x Si 6− z Al z O y N 8− y ( y = z − 2 x , x = 0.018, z = 0.23) by gas-pressured synthesis for application to LED. The crystal phase, microstructure, PL emission and thermal quenching properties were investigated in detail. The β-SiAlON:Eu 2+ phosphors absorbed broad UV–vis spectral region, and showed a single intense broadband emission near 538 nm. The Stokes shift and zero-phonon line were calculated mathematically, and also estimated from the spectral data. The β-SiAlON:Eu 2+ green phosphor showed superior thermal quenching properties compared to commercial silicate (SrBaSiO 4 :Eu 2+ ) green phosphor. The white light-emitting diode (LED) using the prepared β-SiAlON:Eu 2+ green phosphor exhibited high color gamut, and good optical stability in high working temperature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Ammonia Synthesis and Nitrogen Reduction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
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