Advances in Chromium‐Activated Phosphors for Near‐Infrared Light Sources

Laser & Photonics Review, Год журнала: 2022, Номер 16(11)

Опубликована: Авг. 7, 2022

Abstract Cr 3+ /Cr 4+ ‐activated near‐infrared (NIR) luminescent materials have attracted extensive attention owing to their tunable emission wavelength and widespread applications in plant growth, food analysis, biomedical imaging, night vision, so on. Plenty of excellent NIR are developed by introducing ion various inorganic hosts. Herein, the effect crystal field on luminescence combining Tanabe–Sugano energy level diagram configuration coordinate model is discussed. Research progress ‐doped materials, including phosphors designed from structural models with octahedral, tetrahedral, other coordination types, then outlined. The properties more than 200 kinds summarized. In particular, several strategies for tuning wavelength, broadening band, enhancing efficiency, improving thermal stability, listed. Finally, current challenges future prospects research presented. This review will contribute a deeper understanding not only mechanism but also chromium‐doped as develop better performance explore applications.

Язык: Английский

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How to Achieve Excellent Luminescence Properties of Cr Ion‐Doped Near‐Infrared Phosphors

Advanced Optical Materials, Год журнала: 2023, Номер 11(24)

Опубликована: Окт. 11, 2023

Abstract Transition metal chromium (Cr) ion‐doped inorganic materials exhibit distinct tunable broadband near‐infrared luminescence, and they have promising applications including nondestructive composition analysis, night vision, biomedicine, plant illumination, afterglow anticounterfeiting. Currently, the most critical issue is to optimize their full width at half maxima, thermal stability, internal/external quantum efficiency. This review systematically summarizes strategies effectively improve photoluminescence performance of near‐infrared‐emitting with transition ions. Key examples design preparation Cr luminescence different modes, a detailed discussion properties luminescent materials, summary generic help explore novel efficient Cr‐doped phosphor are provided. Next, latest developments trends in these presented for variety application scenarios. Finally, future research directions new challenges faced also discussed.

Язык: Английский

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Energy transfer realizes efficient NIR emitting Ca2ScTaO6:Cr3+, Yb3+ perovskite-structured phosphors

Ceramics International, Год журнала: 2023, Номер 49(10), С. 15717 - 15725

Опубликована: Янв. 28, 2023

Язык: Английский

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LiGaP2O7:Cr3+, Yb3+ phosphors for broadband NIR LEDs toward multiple applications

Journal of Alloys and Compounds, Год журнала: 2023, Номер 956, С. 170311 - 170311

Опубликована: Апрель 26, 2023

Язык: Английский

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Tunable emission color, energy transfer mechanisms and high thermal stability of Tm3+/Dy3+ co-doped single-phase white luminescent tungstate phosphors

Journal of Luminescence, Год журнала: 2024, Номер 269, С. 120519 - 120519

Опубликована: Фев. 22, 2024

Язык: Английский

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A novel near-infrared phosphor Li_1.6Mg_1.6Sn_2.8O₈:Cr³⁺ for near-infrared spectral analysis

Journal of Materials Chemistry C, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

A novel near-infrared broadband phosphor Li 1.6 Mg Sn 2.8 O 8 :Cr 3+ for spectroscopy with a peak at 860 nm and an FWHM of 187 nm.

Язык: Английский

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Broadband emitting phosphor Sr₆Sc₂Al₄O₁₅:Cr³⁺ for near-infrared LEDs

Journal of Materials Chemistry C, Год журнала: 2023, Номер 11(26), С. 9030 - 9036

Опубликована: Янв. 1, 2023

Screening an appropriate Cr 3+ -doped broadband emission host by using Ce as a probe.

Язык: Английский

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Novel broadband NIR phosphors Y₂Mg₂Ga₂Si₂O₁₂:xCr³⁺ for NIR LED applications

Dalton Transactions, Год журнала: 2023, Номер 52(19), С. 6569 - 6577

Опубликована: Янв. 1, 2023

The Cr3+-doped near-infrared (NIR) phosphors have been extensively investigated owing to their promising applications in biomedicine, food safety detection, and night vision surveillance. However, achieving broadband (FWHM > 160 nm) NIR emission is still challenging. In this paper, novel Y2Mg2Ga2-xSi2O12:xCr3+ (YMGS:xCr3+, x = 0.005-0.08) were prepared by a high-temperature solid-state reaction. crystal structure, photoluminescence properties of the phosphor, device performance pc-LED researched detail. When excited at 440 nm, YMGS:0.04Cr3+ phosphor exhibited range 650-1000 peaking 790 nm with full width half-maximum (FWHM) up 180 nm. wide FWHM YMGS:Cr3+ conducive its extensive application spectroscopic technology. addition, could maintain 70% initial intensity 373 K. By combining commercial blue chip resulting demonstrated output power 14 mW photoelectric conversion efficiency 5% drive current 100 mA. This work provides option for devices.

Язык: Английский

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Blue-light-excitable pure and efficient short-wave infrared luminescenceviaCr³⁺→ Yb³⁺energy transfer in a KYbP₂O₇:Cr³⁺phosphor

Journal of Materials Chemistry C, Год журнала: 2023, Номер 11(7), С. 2748 - 2755

Опубликована: Янв. 1, 2023

A novel KYbP 2 O 7 :Cr 3+ inorganic phosphor that emits pure and efficient SWIR photoluminescence upon blue light excitation has been developed, can be used as a stable luminescence converter for emitter.

Язык: Английский

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Deep-red to NIR emission of Mn4+ and Cr3+ doped La2MgTiO6 phosphor with multifunctional applications

Journal of Luminescence, Год журнала: 2023, Номер 257, С. 119778 - 119778

Опубликована: Март 1, 2023

Язык: Английский

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