Improving the up/down-conversion luminescence via cationic substitution and dual-functional temperature sensing properties of Er3+ doped double perovskites

Chemical Engineering Journal, Год журнала: 2023, Номер 471, С. 144550 - 144550

Опубликована: Июль 8, 2023

Язык: Английский

---

Shell Engineering on Thermal Sensitivity of Lifetime-Based NIR Nanothermometers for Accurate Temperature Measurement in Murine Internal Liver Organ

Nano Letters, Год журнала: 2023, Номер 23(7), С. 2862 - 2869

Опубликована: Март 16, 2023

Lifetime-based NIR luminescent nanothermometry is ideally suited for temperature detection in living cells and vivo, but the thermal sensitivity (Sr) modulation remains elusive. Herein, a thorough investigation performed to unveil shell effect on lifetime-based Sr by finely controlling thickness of lanthanide-doped core–shell–shell nanoparticles. Owing space-dependent energy transfer back between Nd3+ Yb3+ as well migration surface quenchers, both active inert shells can regulate thermal-dependent nonradiative decays luminescence lifetime Yb3+, which turn modulates from 0.56% 1.54% °C–1. After poly(acrylic acid) modification optimal architecture, tiny nanoprobes possess robust stability fluctuations microenvironment, enables accurate mapping inflammation internal liver organ mouse. This work will provide new insights optimizing guidance precise measurements vivo.

Язык: Английский

---

Eu³⁺‐Activated Single‐Band Ratiometric Nanothermometry by Lattice Negative Thermal Expansion

Laser & Photonics Review, Год журнала: 2023, Номер 17(8)

Опубликована: Апрель 3, 2023

Abstract Single‐band ratiometric (SBR) thermometry has recently emerged as a powerful alternative to its dual‐emission counterparts because it can avoid the large uncertainties related emission spectral overlap or light absorption/scattering by medium. Herein, novel SBR thermometric scheme in Sc 2 Mo 3 O 12 :Eu 3+ nanosheet that depends on thermal enhancement of charge‐transfer state absorption between 2− and Eu is reported. Mechanistic investigation reveals vital role lattice negative expansion (NTE) for thermally enhanced emissions according configuration coordinate model. In contrast, serious quenching detected under excitation wavelength corresponding ground absorption. Such wavelength‐dependent behavior luminescence enabled with high sensitivity resolution ( S r = 2.0% K −1 , δT 0.121 at 363 K). Finally, applicability proposed model real‐world sensing scenarios demonstrated using as‐fabricated flexible thin‐film, offering accurate real‐time temperature detection local hotspot electronic component.

Язык: Английский

---

Ultrasensitive NIR‐II Ratiometric Nanothermometers for 3D In Vivo Thermal Imaging

Advanced Materials, Год журнала: 2023, Номер 36(11)

Опубликована: Дек. 13, 2023

Abstract Luminescent nanothermometry, particularly the one based on ratiometric, has sparked intense research for non‐invasive in vivo or intracellular temperature mapping, empowering their uses as diagnosis tools biomedicine. However, ratiometric detection still suffers from biased sensing induced by wavelength‐dependent tissue absorption and scattering, low thermal sensitivity ( S r ), lack of imaging depth information. Herein, this work constructs an ultrasensitive NIR‐II nanothermometer with self‐calibrating ability 3D thermographic imaging, which temperature‐insensitive lanthanide nanocrystals strongly temperature‐quenched Ag 2 quantum dots are co‐assembled to form a hybrid nanocomposite material. Precise control over amount ratio between two sub‐materials enables manipulation heat‐activated back energy transfer Yb 3+ nanoparticles, thereby rendering up 7.8% °C −1 at 43.5 °C, higher than 6.5% entire physiological range. Moreover, luminescence intensity separated spectral regions within narrow emission peak is used determine information nanothermometers living mice correct effect 2D therefore allows proof‐of‐concept demonstration accurate constituting solid step toward development advanced nanothermometry biological applications.

Язык: Английский

---

Self-calibrated multi-mode optical thermometry in up-converting phosphor Cs2NaErCl6: Yb3+

Journal of Luminescence, Год журнала: 2023, Номер 263, С. 120132 - 120132

Опубликована: Авг. 22, 2023

Язык: Английский

---

Thermally enhanced NIR up-conversion fluorescence multimode thermometry based on Y₂Mo₃O₁₂:Nd³⁺,Yb³⁺

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(21), С. 7588 - 7595

Опубликована: Янв. 1, 2024

A multimode high sensitivity fluorescence thermometer combining thermal enhancement and FL extension in one NTE material Y 2 Mo 3 O 12 :Nd 3+ ,Yb .

Язык: Английский

---

Sensitive Luminescence Thermometry through Excitation Intensity Ratio in Eu-Doped BaTiO₃

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(11), С. 13972 - 13979

Опубликована: Март 7, 2024

Optical ratiometric thermometry techniques have gained much attention in recent years due to their reliable and noncontact temperature sensing capability for industrial biorelated applications. Herein, we exploited the dependence of absorption band BaTiO

Язык: Английский

---

Stimuli-responsive luminescence in doped inorganic crystals

Applied Physics Letters, Год журнала: 2025, Номер 126(13)

Опубликована: Март 1, 2025

Inorganic crystals doped with luminescent ions have attracted considerable interest due to their abundant luminescence spectra. Particularly, these materials can show highly variable in response external stimuli, rendering widespread applications ranging from super-resolution techniques high-security information encryption. In this Perspective, we highlight the recent developments of controlling optical inorganic under various including light, temperature, water/humidity, and mechanical force. Moreover, delve into underlying mechanism discuss relevant applications, simultaneously pointing out challenges future directions for designing superior stimuli-responsive materials.

Язык: Английский

---

Dual-mode optical ratiometric thermometry using Pr³⁺-doped NaSrGd(MoO₄)₃ phosphors with tunable sensitivity

Dalton Transactions, Год журнала: 2023, Номер 52(47), С. 18069 - 18081

Опубликована: Янв. 1, 2023

Owing to some special superior features, luminescence ratiometric thermometry has acquired popularity, particularly dual excitation single emission (SBR) and (FIR). Nonetheless, it remains difficult create that can operate in multiple modes. The integration of FIR SBR techniques paves the way for advancements various fields, including industrial processes, environmental monitoring, biomedical applications, where accurate temperature measurements are crucial optimal performance safety. In this work, we describe a measure based on light-induced fluorescence Pr3+ NaSrGd(MoO4)3 (NSGM). optical properties were investigated by UV-visible absorption, PL, PLE spectroscopy. On one hand, exhibits varying temperature-dependent behavior upon 450 nm excitation. Thus, thermometer between levels been generated, with highest sensitivity approximately 0.83% K-1 over wide range 290-440 K. Furthermore, luminescent was evaluated same range. effect concentration red-emitting thermometers detail. Sa Sr values gradually increase, content reaching maximum value 2.4% at 413 K NSGM:10% phosphor. These results show ions have potential be optically active centers applications using techniques. It is anticipated present work will inspire other researchers employ multi-mode more widely.

Язык: Английский

---

Na₂GdMg₂V₃O₁₂:Sm³⁺ phosphors for three‐mode optical temperature sensing

Journal of the American Ceramic Society, Год журнала: 2023, Номер 106(12), С. 7514 - 7522

Опубликована: Июль 24, 2023

Abstract Multi‐mode optical thermometry is emerging as a promising technique for accurate temperature measurement. Here, series of Na 2 GdMg V 3 O 12 :Sm 3+ (NGMVO: x Sm ) phosphors with dual‐emission centers were successfully elaborated. Irradiated by 349 nm light, NGMVO:Sm can generate emissions from VO 4 3− and simultaneously due to energy transfer between them. Benefitting difference thermal quenching performance two luminescent centers, fluorescence intensity ( FI ), ratio FIR Commission Internationale de L'Eclairage coordinate modes thermometer designed. Maximum relative sensitivities S R are found be high 2.21 %K −1 , 2.12 0.244 respectively. Besides, increasing, values decrease slowly. Their minimal 303 513 K maintain above 1.36 1.08 Our findings reveal that have applications multimode senor.

Язык: Английский

---