Defect band enhanced Ca9Y(VO4)7: Yb3+/Er3+/Sr2+ phosphor upconversion luminescence for multimode optical temperature measurement DOI
Junshan Hu, Bin Duan,

Yao Kuang

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(28), P. 10592 - 10603

Published: Jan. 1, 2024

The Ca 9 Y(VO 4 ) 7 : Yb 3+ /Er /Sr 2+ phosphor has excellent upconversion luminescence. In addition, F 9/2 / I , 2 H 11/2 S 3/2 and optical temperature measurement exhibits accurate stable performance.

Language: Английский

Luminescence thermometry with transition metal ions. A review DOI Creative Commons
Ł. Marciniak, K. Kniec, K. Elżbieciak-Piecka

et al.

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 469, P. 214671 - 214671

Published: June 21, 2022

Transition metal (TM) ion activated phosphors are increasingly being used as probes for luminescence thermometry. Their is characterized by strong absorption and emission bands that span the visible near-infrared spectral ranges highly susceptible to temperature variations. Due latter characteristic, sensitive reliable remote measurements can be performed observing temperature-induced changes in TM intensities, bandwidths bandshifts, excited state lifetimes, well dependences of intensity ratios between various single or double phosphors. This review provides a systematic analysis performances luminescent thermometers based on different ions discusses relations among spectroscopic properties, characteristics host material structure, thermometric performance. Particular attention given engineering energy transfer other dopant obtain thermometers. Finally, several typical application examples from recent literature highlighted.

Language: Английский

Citations

145
Halide Double Perovskite Nanocrystals Doped with Rare‐Earth Ions for Multifunctional Applications DOI Creative Commons
Xin Li, Dingdi Wang, Yuan Zhong

et al.

Advanced Science, Journal Year: 2023, Volume and Issue: 10(20)

Published: April 28, 2023

Most lead-free halide double perovskite materials display low photoluminescence quantum yield (PLQY) due to the indirect bandgap or forbidden transition. Doping is an effective strategy tailor optical properties of materials. Herein, efficient blue-emitting Sb3+ -doped Cs2 NaInCl6 nanocrystals (NCs) are selected as host, rare-earth (RE) ions (Sm3+ , Eu3+ Tb3+ and Dy3+ ) incorporated into excellent PLQY 80.1% obtained. Femtosecond transient absorption measurement found that RE not only served activator but also filled deep vacancy defects. Anti-counterfeiting, thermometry, white-light-emitting diodes (WLEDs) exhibited using these ions-doped NCs. For thermometry based on Sm3+ :Sb3+ NCs, maximum relative sensitivity 0.753% K-1 which higher than those most temperature-sensing Moreover, WLED fabricated by NCs@PMMA displays CIE color coordinates (0.30, 0.28), a luminous efficiency 37.5 lm W-1 CCT 8035 K, CRI over 80, indicate NCs promising single-component phosphors for next-generation lighting technologies.

Language: Английский

Citations

91
Regulating Exciton De‐Trapping of Te4+‐Doped Zero‐Dimensional Scandium‐Halide Perovskite for Fluorescence Thermometry with Record High Time‐Resolved Thermal Sensitivity DOI Open Access
Gaoqiang Li, Chen Xu, Meng Wang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(44)

Published: Aug. 21, 2023

Abstract Fluorescence thermometry has been propelled to the forefront of scientific attention due its high spatial resolution and remote non‐invasive detection. However, recent generations thermometers still suffer from limited thermal sensitivity ( S r ) below 10% change per Kelvin. Herein, this work presents an ideal temperature‐responsive fluorescence material through Te 4+ ‐doped 0D Cs 2 ScCl 5 ·H O, in which isolated polyhedrons endow highly localized electronic structures, strong electron–phonon coupling facilitates formation self‐trapped excitons (STEs). With rising temperature, dramatic asymmetric expansion soft lattice induces increased defects, exciton–phonon coupling, low activation energy, evokes a rapid de‐trapping process STEs, enabling several orders magnitude changes lifetime over narrow temperature range. After regulating with different doping, record‐high (27.36% K −1 lifetime‐based detection is achieved at 325 K. The robust stability against multiple heating/cooling cycles long‐term measurements enables uncertainty 0.067 Further, developed are demonstrated for local monitoring operating on internal components. It believed that constitutes solid step towards building next generation ultrasensitive based low‐dimensional metal halides.

Language: Английский

Citations

55
Highly efficient cyan-red emission in self-activated Sr9In(VO4)7:xEu3+ phosphors for applications in W-LEDs and optical thermometry DOI
Juanjuan Kong, Yunjian Wang, Wenming Tong

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 983, P. 173936 - 173936

Published: Feb. 21, 2024

Language: Английский

Citations

26
In-situ fabrication of carbon dots on intense cyan-blue emitting CaAl2O4:Ce3+ phosphor for enhancing thermal sensing, anti-counterfeiting and fingerprint detection applications DOI

C.K. Chaithra,

B.R. Radha Krushna,

M. Mangala Gowri

et al.

Journal of Luminescence, Journal Year: 2025, Volume and Issue: unknown, P. 121111 - 121111

Published: Jan. 1, 2025

Language: Английский

Citations

3
Novel Li2Ga0.5Sb0.5O3(Li4GaSbO6):Mn4+ phosphors with multisite occupancy for efficient FIR and luminescence lifetime dual-mode thermometers DOI
Kai Li, Zhenyu Huang, Daiman Zhu

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

2
Highly Sensitive Dual-Mode Optical Thermometry of Er3+/Yb3+ Codoped Lead-Free Double Perovskite Microcrystal DOI

Hanqi Xu,

Jinyang Yu,

Qichuan Hu

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2022, Volume and Issue: 13(4), P. 962 - 968

Published: Jan. 21, 2022

In this Letter, erbium (Er3+) and ytterbium (Yb3+) codoped perovskite Cs2Ag0.6Na0.4In0.9Bi0.1Cl6 microcrystal (MC) is synthesized demonstrated systematically to the most prospective optical temperature sensing materials. A dual-mode thermometry based on fluorescence intensity ratio lifetime provides a self-reference highly sensitive measurement under dual wavelength excitation at from 300 470 K. Combined with white-light emission derived self-trapped excitons (STEs), characteristic peak of Er3+ ions can be observed 405 nm laser excitation. The (FIR) between used as temperature-dependent probe signal, which maximum value for relative absolute sensitivities reaches 1.40% K-1 8.20 × 10-2 K-1. Moreover, luminescence becomes stronger feeding Yb3+ increasing 980 energy transfer revealed by power-dependent photoluminescence (PL) spectroscopy, involved upconversion mechanism pertains two-photon process. results reveal that Er3+/Yb3+ lead-free double MC good candidate thermometric material novel design.

Language: Английский

Citations

60
High-sensitivity luminescent thermometer based on Mn4+/Sm3+ dual-emission centers in double-perovskite tellurate DOI

Zhaojie Wu,

Li Li, Yongjie Wang

et al.

Ceramics International, Journal Year: 2022, Volume and Issue: 48(19), P. 27664 - 27671

Published: June 8, 2022

Language: Английский

Citations

51
A three-mode optical thermometry based on thermochromic Gd2GaSbO7:Bi3+,Eu3+ phosphors DOI

Ligan Ma,

Fumin Lu,

Qingqing Yu

et al.

Ceramics International, Journal Year: 2023, Volume and Issue: 49(11), P. 16681 - 16689

Published: Feb. 6, 2023

Language: Английский

Citations

31
Three-mode fluorescence thermometers based on double perovskite Ba2GdNbO6:Eu3+,Mn4+ phosphors DOI

Yuxuan Luo,

Chen Yang, Lianjie Li

et al.

Ceramics International, Journal Year: 2023, Volume and Issue: 49(23), P. 38007 - 38014

Published: Sept. 14, 2023

Language: Английский

Citations

27