Achieving Thermally Stable YAl3–xGax(BO3)4:Cr3+ Near-Infrared Emitting Phosphors via Chemical Substitution for Plant Growth LEDs DOI
Jin Yang,

Jianhao Zha,

Qinan Mao

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Indoor plant cultivation has been receiving increased attention due to concerns about sustainable agricultural production. Phosphor-converted light-emitting diodes (pc-LEDs) offer substantial promise as lighting solutions for regulating growth. However, the quest high-performance phosphors with precise responsiveness far-red phytochromes poses a challenge. Our study proposes chemical substitution strategy develop near-infrared (NIR) phosphors, YAl

Language: Английский

Near‐Unity Internal Quantum Efficiency and High Thermal Stability of Sr3MgGe5O14: Cr3+ Phosphor for Plant Growth DOI Open Access

Qiuming Lin,

Xiaozhong Wu, Jiaqing Peng

et al.

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Abstract Near‐infrared phosphor‐converted light‐emitting diodes (NIR pc‐LEDs) are regarded one of the most promising light sources for food analysis, plant growth, bioimaging, night vision, and so on. Cr 3+ ‐activated NIR phosphors have garnered increasing attention due to their exceptional photoluminescence properties pc‐LED. However, them suffer from poor thermal stability or low efficiency which limits large‐scale application. Herein, a novel Sr 3 MgGe 5 O 14 : (SMGO: ) phosphor is presented, exhibits broadband emission ranging range 650–1000 nm with peak at 735 nm. SMGO: 0.005Cr demonstrates an almost near‐unity internal quantum (99.4%) excellent quenching performance ( I 423 K /I 298 = 86%). First‐principles theory calculation indicates that ions preferentially occupy [Ge2/MgO 4 ] [Ge3O sites high doping concentration within SMGO host, illustrating mechanism. Furthermore, pc‐LED manufactured by utilizing 445 blue LED chip, output power 140.5 mW photoelectric conversion 15.5% 300 mA. Potential applications growth detection several mental also demonstrated, demostrates its application in growth.

Language: Английский

Citations

2
Unraveling the Remarkable Influence of Square Antiprism Geometry on Highly Efficient Far‐Red Emission of Eu3+ in Borotellurate Phosphors for Versatile Utilizations DOI
Hong Li,

Yingfan Niu,

Conglin Liu

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 12, 2024

Abstract Eu 3+ ‐activated red‐emitting inorganic phosphors have been favored highly for their classical 5 D 0 → 7 F J (J = 0, 1, 2, 3, 4) emissions. However, the fatal drawbacks of poor luminous efficacy and weak 4 transition persist, resulting in ongoing challenge achieving far‐red emission. This research reports series efficient LnTeBO (Ln La , Y Gd ):Eu with anomalously strong transition, from distorted square antiprism [Ln/EuO 8 ]. Both thermal stability can be greatly enhanced via simple composition variation. ] antiprism‐triggered 2,4 transitions are elucidated depth, acquiring ultra‐high (IQE 95%, EQE 40%, AE 42%) near‐zero quenching (99%@150°C 98%@200°C). Subsequently, versatile utilizations indoor lighting, plant growth security ink illustrated. finding establishes a deep understanding constructing high‐quality ‐centered structural units antiprism.

Language: Английский

Citations

14
Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems DOI Creative Commons

Jianwei Qiao,

Dehong Li, Qiufeng Shi

et al.

Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)

Published: Dec. 11, 2024

Inorganic luminescent materials hold great promise for optoelectronic device applications, yet the limited efficiency and poor thermal stability of oxide-based deep-red emitting phosphors hinder advancement plant lighting technologies. Herein, a simple compositional engineering strategy is proposed to stabilize phase, boost external quantum (EQE) enhance stability. The chemical modification PO

Language: Английский

Citations

6
Investigating the influence of varied ratios of red and far-red light on lettuce (Lactuca sativa): effects on growth, photosynthetic characteristics and chlorophyll fluorescence DOI Creative Commons
Xueting Bi, Hong Xu, Chaowei Yang

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Sept. 10, 2024

Far red photon flux accelerates photosynthetic electron transfer rates through pigments, influencing various biological processes. In this study, we investigated the impact of differing and far-red light ratios on plant growth using LED lamps with different wavelengths Ca

Language: Английский

Citations

4
Cr3+-doped garnet-type Ca3Al2Ge3O12 phosphors with high color purity and high quantum yield for plant growth lighting DOI

Lanxiu Xiao,

Jina Ding,

Xiaohua Li

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

4
Broadband NIR emission properties of Fe3+-activated aluminate with double peaks via occupying two sites DOI
Renping Cao, Jing Bai,

Jingheng Nie

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179639 - 179639

Published: March 1, 2025

Language: Английский

Citations

0
Broadband and high internal quantum efficiency near-infrared phosphors obtained utilizing a chemical unit co-substitution strategy for plant lighting DOI

Mengqi Lyu,

Jueran Cao,

Baoling Tang

et al.

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) have been widely used in plant cultivation.

Language: Английский

Citations

0
Enhanced Short-Wave Infrared Luminescence in Yb3+-Doped Cr(PO3)3 Phosphor with over 60% External Quantum Efficiency DOI

Lipeng Huang,

Yanjie Liang, Xulong Lv

et al.

ACS Applied Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Language: Английский

Citations

0
Far-red emitting phosphors for plant growth applications: fitted and enhanced via cation substitution of Gd3+ DOI

Chunli Peng,

Jueran Cao,

Baoling Tang

et al.

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A novel phosphor was designed via cation substitution of Gd 3+ , with excellent external quantum efficiency and thermal stability, encapsulated into pc-LEDs applied in experiment lettuce growth, showing an enhancement biomass by 30%.

Language: Английский

Citations

0
Lithiation-Driven Phase Engineering Unlocking Broadband NIR Emission in Cr-Doped Zinc Tantalate DOI
Xiaohong Zhang,

Siyuan Lin,

Changfu Xu

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Structural phase evolution is among the most powerful tools for tuning material properties, enabling advancements in catalysis, dielectrics, optoelectronics, and photoluminescence. Such an can significantly enhance near-infrared (NIR) emission properties of Cr3+-doped phosphors. Herein, we present, to best our knowledge, first observation lithiation-induced continuous structural ZnTa2O6 phosphors, driven by Li+ incorporation. This proceeds systematically from orthorhombic (Pbcn) tetragonal (P42/mnm) ultimately trigonal (Li0.5Zn0.5)TaO3 (R3c) as content increases. When doped with Cr3+, NIR peak exhibits a progressive blue shift, moving 949 885 nm eventually 862 nm, tandem evolution. also yields significant enhancements photoluminescent intensity, internal quantum yield (IQY), photoluminescence thermal stability. Our findings establish new paradigm designing highly efficient ultra-broadband phosphors offer foundation developing tantalate-based materials versatile functionalities, including improved dielectric properties.

Language: Английский

Citations

0