Publicación: EVALUATION OF ALKOXIDE BETA-DIKETONATES CE(III), ER(III), LN(III) COMPLEXES AS PRECURSORS FOR THE PHOTO-DEPOSITION OF CEO2:ER/LN AMORPHOUS THIN FILMS AND THEIR INFLUENCE ON THE LUMINESCENT PROPERTIES (WHERE LN=PR OR YB)
Fecha
2021
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OPTIK
Resumen
WE PROPOSE THE USE OF ALKOXIDE ?-DIKETONATES OF CE(III), ER(III), PR(III) AND YB(III) AS PRECURSORS FOR PHOTOCHEMICAL DEPOSITION OF CEO2:ER AND CEO2:ER/LN (LN = PR OR YB) THIN FILMS, FOLLOWED BY SUBSEQUENT ANNEALING AT 950 °C. THE MEASUREMENTS OF LUMINESCENT PROPERTIES REVEALED THAT CEO2:ER SAMPLES UNDER EXCITATION AT 980 NM EXHIBIT UP-CONVERSION EMISSIONS AT 540 NM AND NEAR INFRARED EMISSIONS CENTERED AT 1550 NM. WHEN CO-DOPING IS PERFORMED ON THE CEO2 FILMS, CEO2:ER/PR REDUCES ITS UP-CONVERSION CHARACTERISTICS AND THE NIR EMISSIONS INCREASE. HOWEVER, THE CEO2:ER/YB SAMPLES SIGNIFICANTLY INCREASE THE UP-CONVERSION PROPERTIES AND INHIBIT NIR EMISSIONS. DIFFERENT MECHANISMS BASED ON ENERGY TRANSFER PROCESSES ARE PROPOSED TO EXPLAIN THESE DIFFERENCES IN THE DEGREE OF INTENSITY OF THESE EMISSIONS.
