2008
DOI: 10.1039/b715675h
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Tuning the emission colour in mixed lanthanide microporous silicates: energy transfer, composition and chromaticity

Abstract: The Ln-AV-20 structure is able to incorporate several different Ln 3+ ions, which emit in different spectral regions, enabling the possibility of multi-colour capability. Using a study of the energy transfer dynamics in Gd 1À(a+b) Tb a Eu b -AV-20 materials, we show that the emission chromaticity of these systems may be fine-tuned in the red-green spectral region simply by changing the excitation wavelength and/or the sample composition. We show that a study of the energy transfer kinetics, in these and in rel… Show more

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Cited by 66 publications
(30 citation statements)
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“…4 [46]. The structure of AV-20 is amenable to the incorporation of a second type of Ln 3+ cation [48].…”
Section: Nomenclaturementioning
confidence: 99%
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“…4 [46]. The structure of AV-20 is amenable to the incorporation of a second type of Ln 3+ cation [48].…”
Section: Nomenclaturementioning
confidence: 99%
“…Recently, much attention was given to AV (acronym of Aveiro) materials because they combine in a single and stable solid microporosity and tuneable optical properties [48]. This makes them potential materials for applications in devices such as cathode ray tubes, projection televisions, fluorescent tubes and X-ray detectors, photonics and optical communication, and may also play an important role in the development of sensors for future use in wastewater control.…”
Section: Nomenclaturementioning
confidence: 99%
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“…Inorganic phosphor materials based on rare earth (RE) compounds and RE ions doped compounds have been widely used in modern lighting and display fields, such as fluorescent lamps, cathode-ray tubes, field emission displays, and plasma display panels because of their abundant emission colors resulting from the 4f electronic shells [1][2][3][4][5]. Recently, the request for light-emitting-diode (LED) converted phosphors has triggered active research efforts in the investigation of single-phased lightemitting phosphors via chemical approaches [6].…”
Section: Introductionmentioning
confidence: 99%
“…Rare-earth-activated inorganic phosphor materials have been widely used in modern lighting and display fields, such as fluorescent lamps, cathode-ray tubes, field emission displays for their well-defined transitions within the 4f electronic shells [1][2][3][4][5]. As the most frequently used activator ions in luminescent materials, the Eu 3? and Tb 3? are excellent activator which mainly show emissions due to transitions of 5 D 0 to 7 F J (J = 1, 2, 3, 4) in the red region and 5 D 4 to 7 F J (J = 6, 5, 4, 3) in the green region, respectively [6,7].…”
Section: Introductionmentioning
confidence: 99%