The thermal and irradiation degradation mechanisms of Eu2+,Mn2+ co-doped BaMgAl10O17 phosphor

Liu, Wenjing; Zhang, JiaChi; Zhou, Meijiao; Wang, Yuhua

doi:10.1007/s11433-012-4799-1

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…Figure 3. These 3 peaks coincided with 3 sites of Eu 2+ ions (BR, aBR and mO) and 2 peaks coincided with 2 sites of Mn 2+ ions, respectively [1]. This result is quite agreeable with our previous works [11,12].…”

Section: Methodssupporting

confidence: 93%

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Luminescence and Energy Transfer Mechanisms of Eu2+, Mn2+ Codoped Bamgal10o17 Phosphor

Trang¹

2017

HueUni-JNS

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Eu 2+ , Mn 2+ codoped BaMgAl10O17 (BAM) phosphors were synthesized using the method of solution combustion. Under the selective excitation at 306 nm, the emission spectra of the phosphors had a blue emission band at 450 nm and a green emission band at 513 nm. The energy transfer mechanism from Eu 2+ to Mn 2+ was clarified. The results indicated that the Eu 2+ ions replaced in the Ba 2+ sites and Mn 2+ ions occupied the Mg 2+ sites. The colour shift of phosphors under excitation of 306 nm was displayed at various concentrations of Mn 2+ ion.

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Section: Methodssupporting

confidence: 93%

“…Another approach is to use UV LEDs fitted with three phosphors emitting red, green, and blue light. This type of white LED eliminates colour uniformity with a high colour rendering index and an excellent quality of light [1]. Therefore, the development of phosphors that can be efficiently excited by UV LEDs is a very crucial issue.…”

Section: Introductionmentioning

confidence: 99%

Luminescence and Energy Transfer Mechanisms of Eu2+, Mn2+ Codoped Bamgal10o17 Phosphor

Trang¹

2017

HueUni-JNS

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“…Interferometric techniques provide the ability to the non-contact, non-destructive and in-situ measurement of the refractive index distributions of nonhomogeneous samples such as a UV photo-degraded VOC suffering induced refractive index variations 41 . This gives much insights about the in-situ spatial and temporal changes in the substance’s chemical and, accordingly, physical properties 16 , 37 – 40 , 42 . Despite being a good indicator on the changes of physical properties, monitoring the refractive index variation can’t identify the chemical variations of the studied material and this is considered as a limitation of the proposed method.…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal photolysis rate profiles of UV254 irradiated toluene

El-Tawargy

2022

Sci Rep

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The volatile organic compound (VOC) toluene is irradiated with a 254 nm UV source. The studied sample (1 mL) of toluene is equipped in a sealed quartz cuvette and inserted in one of the Michelson interferometer’s arms. During a UV254 irradiation of 1 h, the variation in the toluene’s refractive index profiles are monitored as a movement of Michelson interference fringes. These interferograms are recorded and digitally analyzed to produce their phase map distributions and, hence, reconstructing the refractive index profiles which are expressing the toluene’s photolysis behavior. With increasing the UV254 irradiation time, the toluene’s refractive index profiles exhibit both temporal and spatial decrease due to the production of benzyl radicals and the consequent oxidation of these radicals. The spatio-temporal refractive index and photolysis rate profiles of toluene are reconstructed and discussed.

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A micro-structural corrosion mechanism on the thermal degradation of BaMgAl10O17: Eu2+ phosphor

Kong

Xia

Zhang

et al. 2019

Optik

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The thermal and irradiation degradation mechanisms of Eu2+,Mn2+ co-doped BaMgAl10O17 phosphor

Cited by 4 publications

References 13 publications

Luminescence and Energy Transfer Mechanisms of Eu2+, Mn2+ Codoped Bamgal10o17 Phosphor

Luminescence and Energy Transfer Mechanisms of Eu2+, Mn2+ Codoped Bamgal10o17 Phosphor

Spatio-temporal photolysis rate profiles of UV254 irradiated toluene

A micro-structural corrosion mechanism on the thermal degradation of BaMgAl10O17: Eu2+ phosphor

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