Articles with "broadband nir" as a keyword



Achieving High Quantum Efficiency Broadband NIR Mg4Ta2O9:Cr3+ Phosphor Through Lithium‐Ion Compensation

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Published in 2023 at "Advanced Materials"

DOI: 10.1002/adma.202300124

Abstract: Ultra‐efficient broadband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) are urgently needed to improve the detection sensitivity and spatial resolution of current smart NIR spectroscopy‐based techniques. Nonetheless, the performance of NIR pc‐LED has severely limited owing… read more here.

Keywords: phosphor; cr3; broadband; nir ... See more keywords

High‐Power Broadband NIR LEDs Enabled by Highly Efficient Blue‐to‐NIR Conversion

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Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202001660

Abstract: Phosphor‐converted light‐emitting diodes (pc‐LEDs) with broadband near‐infrared (NIR) emission have emerged as compact light sources for portable NIR spectroscopy. However, the associated broadband NIR phosphors suffer from low quantum efficiency (QE) and severe thermal quenching.… read more here.

Keywords: nir; nir emission; power; broadband nir ... See more keywords

High‐Temperature Negative‐Thermal‐Quenching in Broadband NIR Light‐Emitting ScF3:Cr3+ Phosphors

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Published in 2025 at "Advanced Optical Materials"

DOI: 10.1002/adom.202501552

Abstract: Broadband near‐infrared (NIR) phosphors with superior thermal stability are critical enablers of high‐power NIR pc‐LEDs, emerging as essential light sources for NIR spectroscopy applications. In this work, an unprecedented high‐temperature negative thermal quenching (NTQ) phenomenon… read more here.

Keywords: temperature; cr3; broadband; thermal stability ... See more keywords

Highly Efficient and Stable Broadband NIR Phosphor Gd3MgGeGa3O12:Cr3+ for Advanced pc‐LEDs Applications

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Published in 2025 at "Advanced Optical Materials"

DOI: 10.1002/adom.202502141

Abstract: The development of broadband near‐infrared (NIR) phosphors is essential for the advancement of intelligent NIR phosphor‐converted light‐emitting diodes (pc‐LEDs) as light sources in the next generation. In this work, a series of Cr3+‐activated high‐efficiency broadband… read more here.

Keywords: cr3; broadband; nir phosphor; gd3mggega3o12 ... See more keywords

Broadband NIR emission at 1.53 μm in trivalent erbium ions doped SrO-Al2O3-B2O3-BaCl2-10TeO2 glasses for optical fiber and NIR laser applications

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Published in 2021 at "Journal of Non-crystalline Solids"

DOI: 10.1016/j.jnoncrysol.2021.120937

Abstract: Abstract A new series of Er3+ ions doped Oxy Chloro Boro Tellurite glasses were prepared by melt-quenching method. Various spectroscopic properties were determined from absorption, excitation and photo-luminescence spectra. The Judd-Ofelt intensity parameters Ωλ(λ=2,4,6) were… read more here.

Keywords: emission; broadband nir; er3 ions; erbium ions ... See more keywords
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Enhanced broadband NIR emission of low Bi-doped borate glass by carbon reduction

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Published in 2021 at "Materials Letters"

DOI: 10.1016/j.matlet.2021.130791

Abstract: Abstract The NIR efficiency was greatly enhanced both in ultra-low and high Bi-doped borate glasses with the addition of a little carbon. By further adjusting the Bi-doping concentration, it is found that the optimal Bi2O3… read more here.

Keywords: nir emission; carbon; carbon reduction; doping concentration ... See more keywords
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Multi-site Cr3+ occupation-related broadband NIR luminescence in Cr3+-doped Li3Mg2NbO6

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Published in 2021 at "CrystEngComm"

DOI: 10.1039/d1ce00746g

Abstract: Broadband NIR luminescence from the Li3Mg2NbO6:Cr3+ phosphor is related to the multi-site occupation behavior of Cr3+. read more here.

Keywords: nir luminescence; multi site; cr3; broadband nir ... See more keywords

Highly efficient broadband NIR phosphor Y2CaHfScAl3O12:Cr3+,Yb3+ with superior thermal stability for spectroscopy applications

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Published in 2023 at "Journal of Materials Chemistry C"

DOI: 10.1039/d3tc00634d

Abstract: The rising demands for spectroscopy applications in the fields of information encryption, non-invasive detection and component analysis have attracted extensive attention to high power near-infrared (NIR) light sources. Near-infrared phosphor-converted... read more here.

Keywords: phosphor; spectroscopy; highly efficient; efficient broadband ... See more keywords

Achieving broadband near-infrared emission with superior anti-thermal quenching by optimizing the excited-state population of Cr3+ in Gd3ScGa4O12 garnet phosphors.

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Published in 2024 at "Materials horizons"

DOI: 10.1039/d4mh01157k

Abstract: Cr3+-activated garnet phosphors with broadband near-infrared (NIR) emission have attracted considerable interest due to their high quantum efficiency (QE) and thermal stability for widespread advanced applications. Nevertheless, how to achieve energy-saving broadband NIR phosphors that… read more here.

Keywords: cr3; broadband; broadband near; garnet phosphors ... See more keywords