A novel Ba2SrWO6:Mn4+/Dy3+ red phosphors for warm WLED applications

Zhang, Shaoyu; Tsai, Meng-Hung; Hsu, Tsung-Hsien; Huang, Chen‐Bin; Huang, Cheng−Liang

doi:10.1016/j.mseb.2022.115981

“…In addition, the decay of the fluorescence is shown in Figure 3e, and the lifetime was estimated using Equation (4) [31,32]:…”

Section: Luminescence Propertiesmentioning

confidence: 99%

Luminescence of Sm³⁺ in double perovskite‐type Ba₂SrWO₆ for insect trapping

Li,

Wu,

Zhang

et al. 2024

Luminescence

0

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The predominant method for pest control has been the use of pesticides, which have been shown to have detrimental effects on soil, freshwater, and crop quality. Therefore, the development of novel and sustainable crop protection strategies has become increasingly imperative. In this study, a novel orange–red emitting Ba2SrWO6: Sm3+ phosphor was synthesized using the high‐temperature solid‐state reaction. Under ultraviolet excitation, the phosphors showed obvious emission peaks at 575, 614, and 662 nm. The Ba2SrWO6: Sm3+ was used to fabricate a fluorescence film with polydimethylsiloxane (PDMS), and attracted twice as many insects as the blank control group under 365 nm ultraviolet light. This material holds great potential as a fluorescent agent for insect trapping in the pest control fields of tea, cotton, eggplant, rice, potato, grape, and other agricultural industries. Our findings provide an eco‐friendly approach to pest management for the increment of food production.

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“…There is a wealth of research on this topic, with particular emphasis on the extensively studied transition metal ion Mn 4+ due to its broad absorption band and low doping concentration. Examples include SrKYTeO6:Mn 4+ phosphor 5 , Ba2SrWO6:Mn 4+ phosphor 6 , CaMgAl10O17:Mn 4+ phosphor 7 , CaMg2La2W2O12:Mn 4+ phosphor 8 .…”

Section: Introductionmentioning

confidence: 99%

Tunable wide rectangular red fluorescence spectrum based on gradient temperature method

Yang¹,

Ren²

2023

Preprint

0

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The Mn4+ -doped Li3LaMgTiO6 phosphor is synthesized via the solid-state reaction technique. Through the utilization of a gradient temperature synthesis method, we have observed a "blue shift" phenomenon in the fluorescence peak, whereby the most intense fluorescence peak shifts from 711 nm to 680 nm as temperature increases. When the sintering temperature reaches 1150 0C and the gradient temperature between the top and bottom of the sample reaches 50 0C, a rectangular fluorescence spectrum with full widths at half maximum (FWHM) up to 100 nm and peak width up to 31 nm can be achieved. Drawing on energy level theory, crystal physics, and luminescence theory, this work delves into the fluorescence mechanism underlying the ‘blue shift’ phenomenon. This study demonstrates the significant practical implications of both the gradient temperature method and phosphors in the field of fluorescent materials.

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“…There is a wealth of research on this topic, with particular emphasis on the extensively studied transition metal ion Mn 4+ due to its broad absorption band and low doping concentration. Examples include SrKYTeO6:Mn 4+ phosphor 5 , Ba2SrWO6:Mn 4+ phosphor 6 , CaMgAl10O17:Mn 4+ phosphor 7 , CaMg2La2W2O12:Mn 4+ phosphor 8 .…”

Section: Introductionmentioning

confidence: 99%

Tunable wide rectangular red fluorescence spectrum based on gradient temperature method

Yang¹,

Ren²

2023

Preprint

0

View full text Add to dashboard Cite

The Mn4+ -doped Li3LaMgTiO6 phosphor is synthesized via the solid-state reaction technique. Through the utilization of a gradient temperature synthesis method, we have observed a "blue shift" phenomenon in the fluorescence peak, whereby the most intense fluorescence peak shifts from 711 nm to 680 nm as temperature increases. When the sintering temperature reaches 1150 0C and the gradient temperature between the top and bottom of the sample reaches 50 0C, a rectangular fluorescence spectrum with full widths at half maximum (FWHM) up to 100 nm and peak width up to 31 nm can be achieved. Drawing on energy level theory, crystal physics, and luminescence theory, this work delves into the fluorescence mechanism underlying the ‘blue shift’ phenomenon. This study demonstrates the significant practical implications of both the gradient temperature method and phosphors in the field of fluorescent materials.

show abstract

A novel Ba2SrWO6:Mn4+/Dy3+ red phosphors for warm WLED applications

Cited by 6 publications

References 34 publications

Luminescence of Sm³⁺ in double perovskite‐type Ba₂SrWO₆ for insect trapping

Luminescence of Sm³⁺ in double perovskite‐type Ba₂SrWO₆ for insect trapping

Tunable wide rectangular red fluorescence spectrum based on gradient temperature method

Tunable wide rectangular red fluorescence spectrum based on gradient temperature method

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A novel Ba2SrWO6:Mn4+/Dy3+ red phosphors for warm WLED applications

Cited by 6 publications

References 34 publications

Luminescence of Sm3+ in double perovskite‐type Ba2SrWO6 for insect trapping

Luminescence of Sm3+ in double perovskite‐type Ba2SrWO6 for insect trapping

Tunable wide rectangular red fluorescence spectrum based on gradient temperature method

Tunable wide rectangular red fluorescence spectrum based on gradient temperature method

Contact Info

Product

Resources

About

Luminescence of Sm³⁺ in double perovskite‐type Ba₂SrWO₆ for insect trapping

Luminescence of Sm³⁺ in double perovskite‐type Ba₂SrWO₆ for insect trapping