Broadband emission in alkali halides triggered by Sb3+ doping DOI Creative Commons
Yanyan Li, Mircea Cotlet, Ido Hadar

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(99), P. 14806 - 14809

Published: Jan. 1, 2024

Broadband emissions in a series of alkali chlorides are achieved by doping NaCl, KCl, and RbCl with Sb 3+ .

Language: Английский

Near‐infrared emitting metal halide materials: Luminescence design and applications DOI Creative Commons
Dongjie� Liu, Peipei Dang, Guodong Zhang

et al.

InfoMat, Journal Year: 2024, Volume and Issue: 6(5)

Published: March 28, 2024

Abstract Near‐infrared (NIR) luminescent metal halide (LMH) materials have attracted great attention in various optoelectronic applications due to their low‐temperature solution‐processable synthesis, abundant crystallographic/electronic structures, and unique properties. However, some challenges still remain luminescence design, performance improvement, application assignments. This review systematically summarizes the development of NIR LMHs through classifying origins into four major categories: band‐edge emission, self‐trapped exciton (STE) ion defect‐related emission. The mechanisms different types are discussed detail by analyzing typical examples. Reasonable strategies for designing optimizing luminescence/optoelectronic properties summarized, including bandgap engineering, self‐trapping state chemical composition modification, energy transfer, other auxiliary such as improvement synthesis scheme post‐processing. Furthermore, prospects based on devices revealed, phosphor‐converted light‐emitting diodes (LEDs), electroluminescent LEDs, photodetectors, solar cells, x‐ray scintillators, well demonstrations related practical applications. Finally, existing future perspectives LMH critically proposed. aims provide general understanding guidance design high‐performance materials. image

Language: Английский

Citations

20
Temperature/Component‐Dependent Luminescence in Lead‐Free Hybrid Metal Halides for Temperature Sensor and Anti‐Counterfeiting DOI
Guojun Zhou, Yanting Wang,

Yilin Mao

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(34)

Published: June 6, 2024

Abstract Hybrid metal halides (HMHs) have emerged as a promising platform for optically functional crystalline materials, but it is extremely challenging to thoroughly elucidate the electron transition coupled additional ligand emission. Herein, discover sequences of lead‐free HMHs with distinct active cations are aimed, that is, Sb 3+ (5s 2 ) lone‐pair configuration and In (4d 10 fully‐filled configuration. (Me NH 4 M Cl 6 ·Cl = −CH 3 , Sb, In) exhibits superior temperature/component‐dependent luminescence behaviors resulting from competition between triplet‐states (T n ‐S 0 self‐trapped excitons (STEs) inorganic units singlet‐state (S 1 organic cations, which manipulated by optical activity levels [SbCl ] 3− [InCl . The bonding differences /In − in terms electronic excitation hybridization emphasized, different electron‐transition mechanisms established according PL spectra at extreme temperature 5 305 K theoretical calculations. By fine‐tuning B‐site alloying, photoluminescence quantum yield (PLQY 81.5%) stability optimized 20% alloying This research sheds light on rules governing HMHs, well exploring optical‐functional application aviation sensors access‐control systems.

Language: Английский

Citations

16
Sr2AlTaO6: Ni2+ phosphors with excellent IQE and thermal stability as NIR-II source for night vision, nonvisual detection, and far-field imaging DOI
Fengmei Zhu, Yuan Gao,

J. F. Qiu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159559 - 159559

Published: Jan. 13, 2025

Language: Английский

Citations

4
A Nickel-doped, lanthanum gallium germanate-based phosphor as an ultra-broadband short-wavelength infrared region emitter for optical imaging DOI

Mengdie Tan,

Yuan Gao, Jiayuan Chen

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(13), P. 23685 - 23693

Published: April 10, 2024

Language: Английский

Citations

11
Ultra-broadband near-infrared emission of Cr3+-containing oxy-fluoride glass-ceramics DOI
Jing Ren, Fengmei Zhu, Yuan Gao

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(17), P. 31474 - 31481

Published: May 29, 2024

Language: Английский

Citations

11
Long-Wavelength Near-Infrared MgIn2O4:Ni2+ Phosphor with 47.93% IQE and 34.66% EQE for Night Vision Lighting, Nonvisual Detection, and Biological Imaging DOI
Fengmei Zhu, Yu Deng, Yuan Gao

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(10), P. 4555 - 4563

Published: Sept. 3, 2024

Presently, there are very limited options for a broad-band long-wavelength near-infrared phosphor-converted light-emitting diode (LWNIR pc-LED) with wavelengths above ∼1500 nm, and most LWNIR phosphors have low luminescence quantum efficiency. Here, Ni2+-doped MgIn2O4 antispinel were prepared by high-temperature solid-state reaction method. Under 365 nm excitation, they exhibited emission in the range of 1200–2100 an peak ∼1490 full width at half-maximum ∼313 indicating weak crystal field environment high electron polarization around center [MgO6] octahedron. The IQE EQE MgIn2O4:Ni2+ ∼47.93% ∼34.66%, respectively. optimized phosphor was encapsulated LED chip to obtain pc-LED device night vision lighting, nonvisual detection, biological imaging. Our results confirmed that lighting based imaging technology showed clear safety advantages over traditional high-energy ray

Language: Английский

Citations

11
Long-wavelength near-infrared light emitting Ni2+-doped double perovskite molybdate-based solid-solution phosphors DOI
Fengmei Zhu,

Yuan Gao,

Jianbei Qiu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

We developed Ni 2+ -doped (Sr/Ba) 2 MgMoO 6 double perovskite molybdate-based solid-solution long wavelength near-infrared luminescence (1000–2000 nm) phosphors, which shiftss in the range of 1400–1610 nm by simple adjustment Sr/Ba ratio.

Language: Английский

Citations

7
Ultrabroadband Long-Wavelength Near-Infrared MgIn2O4:Ni2+ Phosphor Synthesized via Sol–gel Combustion Method as a Light Source for Night Vision Imaging, Nonvisual Detection, and Anticounterfeiting Display DOI
Yu Deng, Fengmei Zhu, Jianbei Qiu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(36), P. 47952 - 47960

Published: Aug. 27, 2024

Long-wavelength near-infrared (LWNIR) imaging technology has exciting application potential across various fields due to its ability of deeper penetration and unique properties related emission wavelength, when compared short-wavelength imaging. However, the limited availability materials for LWNIR light sources, lack suitable host that constitute luminescence centers, been a major challenge technical obstacle in realizing such applications. Here, we developed MgIn

Language: Английский

Citations

6
High performance NIR-I to NIR-II emission of a Cr3+-doped Cs2NaLuCl6 phosphor with an IQE and EQE of up to 92.9% and 60.75% DOI
Fengmei Zhu, Yuan Gao, Jianbei Qiu

et al.

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

Published: Jan. 1, 2024

We developed a Cr 3+ -doped Cs 2 NaLuCl 6 by grinding–sintering method, which exhibited emission peaked at around 960 nm, with FWHM of ∼182 and the IQE EQE optimized phosphor were as high ∼92.9% ∼60.75%, respectively.

Language: Английский

Citations

6
The synthesis and application of Ni2+-doped NIR-II Phosphors composed of MgAl2-xGaxO4 solid-solution DOI
Yu Deng, Fengmei Zhu, Yuan Gao

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1005, P. 175914 - 175914

Published: Aug. 8, 2024

Language: Английский

Citations

5