2020
DOI: 10.1021/acs.jpcc.0c02313
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Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

Abstract: In this work, instantaneous tuning of emission color in a monolithic tellurite glass doped with Ho3+/Tm3+/Yb3+ ions by modulating excitation frequency is experimentally demonstrated for the first time. The green-to-red ratio of the emission is changed successfully by varying the frequency from 100 to 7500 Hz due to different population rates of transitions due to red and green emissions. Remarkable quantum yield values are obtained under irradiation at a low power density. A multicolor plus-shaped image is con… Show more

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Cited by 15 publications
(1 citation statement)
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“…Altering phase, structure and composition of photoluminescent materials can be a powerful tool for obtaining color tunable emission. Achieving this feature through a monolithic material with fixed composition is quite intricate [2]. At this point, excitation modulation exploiting up-conversion schemes through lanthanide based photoluminescent materials is a promising technique * Authors to whom any correspondence should be addressed.…”
Section: Introductionmentioning
confidence: 99%
“…Altering phase, structure and composition of photoluminescent materials can be a powerful tool for obtaining color tunable emission. Achieving this feature through a monolithic material with fixed composition is quite intricate [2]. At this point, excitation modulation exploiting up-conversion schemes through lanthanide based photoluminescent materials is a promising technique * Authors to whom any correspondence should be addressed.…”
Section: Introductionmentioning
confidence: 99%