Abstract:To settle the unsatisfying efficiency and insufficient light harvesting ability of photocatalysts, we report on the development of Er 3+ /Yb 3+ -codoped BiOBr (BiOBr:Er 3+ /xYb 3+ ) microparticles that were synthesized by a rational high-temperature solid-state reaction method. The prepared microcrystals exhibit high visible upconversion (UC) emissions with maximum intensities at x = 0.01 when excited by a 980 nm laser. Remarkably, the corresponding UC emission process is attributed to a two-photon absorption … Show more
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