Abstract:Ordered SiO2:Er3+ inverse opal films are fabricated by sol–gel technique in combination with a self‐assembly method to examine their potential as a suitable platform to tailor the spontaneous emission lifetime of Er3+ ions and its concentration quenching (CQ). Good ordering on long‐range scale is evidenced by means of scanning electron microscopy, whereas reflectance measurements display a green bright color, as it results from optical Bragg diffraction from the (111) crystal planes. Moreover, it is observed t… Show more
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