White light source with laser-excited phosphor

Abdullaev, O. R.; Aluev, A. V.; Akhmerov, Yu; Kourova, N.; Меженный, М. В.; Chelny, A.A.

doi:10.1070/qel16396

Cited by 4 publications

(2 citation statements)

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“…The main disadvantage of LED light sources is the high initial cost relative to incandescent and luminescent lamps, which is associated, among other things, with the use of a large number of LED crystals due to the fundamental limitation of the external quantum efficiency value. The solution to this problem could be the use of laser diodes [4].…”

Section: Introductionmentioning

confidence: 99%

“…The emission layer applied to the LED crystal is usually polymer luminescent compositions (PLCs) doped with yttrium-aluminum garnet-based compounds [4]. These compounds provide satisfactory spectral characteristics, but are characterized by the presence in the composition of rare earth elements, which negatively affects the cost of both the PLC itself and the LED light source.…”

Section: Introductionmentioning

confidence: 99%

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White emission of polymeric luminescent compositions doped with boron chelates

Yu.

Khrebtov

Федоренко

et al. 2022

Optics and Spectroscopy

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Multicomponent polymeric luminescent compositions doped with β-diketonates of boron difluoride were obtained, which can be used to produce white light by cascade radiative energy transfer. The white light is obtained by using the RGB model. The compositions containing four luminophores showed high color rendering values (color rendering index >80, 2776 K). Two luminescent transitions were realized in the obtained compositions for the red dye (R): S1-> S0, associated with cascade radiative energy transfer along the chain of luminophores, and S2-> S1->S0, directly excited by UV radiation. The luminous characteristics of the obtained compositions indicate the possibility of using polymeric luminescent compositions doped with β-diketonate boron difluoride in emergency and indoor lighting devices. Keywords: β-diketonates of boron difluoride, luminescence, polymer compositions, energy transfer, white light, illumination.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%