Visible luminescence from europium-doped alumina sol–gel-derived films confined in porous anodic alumina
作者： I.S Molchan , N.V Gaponenko , R Kudrawiec , J Misiewicz , L Bryja
DOI: 10.1016/S0925-8388(02)00087-7
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摘要: Abstract In this work, we report on strong photoluminescence (PL) of europium-doped alumina sol–gel-derived films fabricated onto porous anodic 30 μm thickness. The PL spectra represent a set peaks typical for Eu 3+ ions with the maximum at 617 nm. intensity was found to increase content in xerogel. Cooling samples from 300 10 K leads an intensity. increases nearly linearly excitation power within range up 25 mW/cm 2 . Red Eu-related all is visible naked eye even room temperature.
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