| 摘要 |
The present invention relates to luminescent SiO<SUB>z</SUB>, flakes, especially porous luminescent SiO<SUB>z </SUB>flakes, wherein 0.70<=z<=2.0, especially 0.95<=z<=2.0, comprising an organic, or inorganic luminescent compound, or composition, which can provide enhanced (long term) luminescent efficacy.
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