Compositional Modulation Induced Broadband Nir Luminescence Enhancement in A2scnbo6:Cr3+ (a = Ba, Sr) DOI
Fen Xiao,

Haiping Xie,

Chengning Xie

и другие.

Опубликована: Янв. 1, 2023

Язык: Английский

Developing the Na2CaZr2Ge3O12:Cr3+ Garnet Phosphor for Advanced NIR pc-LEDs in Night Vision and Bioimaging DOI

Zurong Liao,

Małgorzata Sójka, Jiyou Zhong

и другие.

Chemistry of Materials, Год журнала: 2024, Номер 36(9), С. 4654 - 4663

Опубликована: Май 1, 2024

Materials emitting near-infrared (NIR) light play a crucial role in the development of phosphor-converted light-emitting diodes (pc-LEDs) for applications ranging from fundamental science like spectroscopic analysis to highly applied uses night vision and biological imaging. One class materials that has garnered significant interest these technical spaces is Cr3+-activated garnets due their high efficiency ability operate at relatively temperatures. However, limited emission beyond 800 nm impedes use as optimal blue LED-pumped NIR-emitting materials. In this study, we present new garnet-type NIR phosphor, Na2CaZr2Ge3O12:Cr3+, addresses challenge─the material exhibits long-wavelength (λem,max = 832 nm) good thermal quenching resistance while maintaining an excellent internal quantum (IQE 98%). These properties are attributed crystal environment reconstruction, where structure distortion coupled weak field, which uncommon most rigid phosphors. Furthermore, fabricated pc-LED devices using demonstrate superior performance compared with employing well-known efficient phosphors operating range. The source subsequently demonstrated spanning vision, bioimaging, nondestructive analysis. This study not only provides insights into luminescence garnet desirable but also highlights practical application

Язык: Английский

Процитировано

29
Broadband MgGa2O4:Cr3+ Spinel with High Luminescence Thermal Stability for Near-Infrared Phosphor-Converted Light-Emitting Diodes DOI

Reshmi Thekke Parayil,

Santosh K. Gupta, Brindaban Modak

и другие.

ACS Applied Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Язык: Английский

Процитировано

1
Non-destructive food-quality analysis using near-infrared luminescence from Mg3Gd2Ge3O12:Cr3+ DOI
Chaojie Li, Małgorzata Sójka, Jiyou Zhong

и другие.

Dalton Transactions, Год журнала: 2023, Номер 52(36), С. 12892 - 12898

Опубликована: Янв. 1, 2023

An efficient broadband NIR garnet-type Mg 3 Gd 2 Ge O 12 :Cr 3+ phosphor with relatively long emission wavelength was developed, which demonstrates an excellent performance in pc-LED applications.

Язык: Английский

Процитировано

16
Strategies to Realize Efficient and Stable Broadband NIR Emission in Germinate Oxides DOI

Misgana U. Dumesso,

Guojun Zheng, Dandan Wang

и другие.

Laser & Photonics Review, Год журнала: 2024, Номер 18(8)

Опубликована: Март 24, 2024

Abstract Phosphor‐converted light‐emitting diodes (pc‐LEDs) are efficient and cost‐effective ultrabroadband light sources for miniaturizing various optical systems, but they exhibit poor performance due to the lack of near‐infrared (NIR) phosphors with a wide spectral coverage 700−1100 nm. Although germanate oxides promising class host materials Cr 3+ generate broadband NIR light, preferred formation [CrO 4 ] 4− high vapor pressure Ge element cause these activated suffer from low internal quantum efficiency (IQE) thermal stability. Here, highly (IQE > 90%) thermally stable emission in germinate garnet Ca 2 LuMgScGe 3 O 12 (CLMSG) obtained by exploiting two‐step sintering method achieve full reduction 4+ . Further, energy transfer Yb is leveraged significantly improve intensity CLMSG:Cr shortwave infrared range 900−1100 Finally, an pc‐LED conversion (21.5%@10 mA) power (116.4 mW@350 demonstrated verify strong capability , blue‐to‐NIR conversion. The results open up new ways realize NIR‐emitting materials.

Язык: Английский

Процитировано

5
Dy3+ → Eu3+ energy transfer induced tunable luminescence in disordered La3Ga5SiO14:Dy3+/Eu3+ phosphors DOI
Qingli Luo,

Qinggang Li

Chemical Physics, Год журнала: 2024, Номер 580, С. 112215 - 112215

Опубликована: Янв. 27, 2024

Язык: Английский

Процитировано

4
Achieving an ultra-high absorption efficiency in a monoclinic LiAlP2O7:Cr3+ near-infrared phosphor DOI
Long Chen, Jiyou Zhong,

Liwei Zeng

и другие.

Journal of Luminescence, Год журнала: 2023, Номер 263, С. 120139 - 120139

Опубликована: Авг. 16, 2023

Язык: Английский

Процитировано

9
Achieving a Balance of Good Quantum Efficiency and Thermal Stability in the Y2CaScAl3GeO12:Cr3+ Broadband Phosphor for Multiple NIR Spectroscopy Applications DOI

Jihuan Xie,

Junhang Tian, Lipeng Jiang

и другие.

Inorganic Chemistry, Год журнала: 2024, Номер 63(38), С. 17418 - 17428

Опубликована: Сен. 4, 2024

Near-infrared phosphor-converted light emitting diodes (NIR pc-LEDs) are considered as desirable NIR sources to satisfy current needs owing their numerous remarkable features. Nevertheless, an essential component, previously reported phosphors with broadband emission often suffer from inferior efficiency or thermal stability, therefore restricting use and promotion. Herein, a novel Cr

Язык: Английский

Процитировано

3
Blue LED-pumped efficient NIR luminescence in Sb3+-doped lead-free metal halides DOI
Xiaoyong Huang

Science China Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Язык: Английский

Процитировано

0
Ultra-broadband NIR-Ⅰ/II-emitting Ca4HfGe3O12:Cr³⁺, Yb³⁺ Garnet Phosphors for organic material analysis DOI
Linlin Wang, Yangai Liu,

Tonglu Sun

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179966 - 179966

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Sol-Gel Synthesized Cr3+:Y3MgAl3SiO12 Broadband Near-Infrared Phosphor for High-Efficiency pc-LEDs DOI
Xiaoqian Dong,

Ye Lu,

Xiaoru Gong

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 181235 - 181235

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0