Ultrafast Room‐Temperature Synthesis of Yb3+/Er3+ Codoped K3ZrF7 Nanocrystals for Thermal Enhancement of Upconversion DOI

Huhui Fu,

Wenfeng Xie,

Yuanqi Qian

et al.

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

Published: Dec. 4, 2024

Abstract Lanthanide (Ln 3+ )‐doped upconversion nanocrystals (NCs) have attracted great attention due to their outstanding luminescent performance and wide applications in various fields. However, the preparation of most Ln ‐doped NCs requires rigorous conditions such as high reaction temperature, long time, strict anhydrous oxygen‐free environment, tedious post‐treatment process. Herein, sub‐100 nm Yb /Er codoped K 3 ZrF 7 octahedral are prepared by an extremely simple coprecipitation method (10 s only at room temperature). The resulting show excellent luminescence (UCL), significantly superior both conventional high‐temperature‐synthesized counterparts room‐temperature‐synthesized NaBiF 4 :Yb/Er controls. More importantly, abnormal thermally enhanced UCL over a temperature range from 473 is found these NCs, making them promising candidates for ratiometric thermometry applications. By employing intensity ratio between two non‐thermally coupled energy levels Er , namely F 9/2 2 H 11/2 display extraordinarily absolute sensitivity 443.2% −1 comparatively large relative 1.55% temperature. These results reveal that can not be facilely via ultrafast room‐temperature synthesis, but also hold potential areas optical sensing biological

Language: Английский

Plasmon-enhanced NIR-II photoluminescence of rare-earth oxide nanoprobes for high-sensitivity optical temperature sensing DOI

B. H. Zhuang,

Yubiao Yang,

Kaihang Huang

et al.

Optics Letters, Journal Year: 2024, Volume and Issue: 49(22), P. 6489 - 6489

Published: Oct. 23, 2024

With ongoing advancements in photothermal therapy, achieving efficient tumor cell eradication while minimizing damage to healthy tissues necessitates a highly effective and non-invasive real-time temperature monitoring technique for human tissues. Herein, we report near-infrared (NIR)-II optical sensing nanoprobe featuring rare-earth-doped gadolinium oxide nanocrystals (RENCs) attached the dumbbell mesoporous silica-coated gold nanorods (AuNRs). The composite presents an intense absorption NIR region, NIR-II photoluminescence (PL) increases by 97.2 102-fold compared pure RENCs upon 980 nm irradiation. localized electric field generated through surface plasmon resonance effects of AuNRs demonstrated dumbbell-shaped distribution that aligns with structure nanoprobes, maximizing PL enhancement RENCs. Moreover, emissions are changed rising temperature, exceptional relative sensitivity 7.25% K

Language: Английский

Citations

14
Dual-mode temperature sensing and fluorescent anti-counterfeiting utilizing Cs2NaErCl6: Yb3+, Dy3+ double perovskite microcrystals DOI

Chenglin Gong,

Lin Lin, Yingzhen Wu

et al.

Journal of Luminescence, Journal Year: 2025, Volume and Issue: 284, P. 121286 - 121286

Published: May 5, 2025

Language: Английский

Citations

0
BaMoO4:Nd3+-Yb3+ upconverting phosphors for NIR to NIR contactless temperature reading out DOI
Abhishek Kumar Soni, Vineet Kumar

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 176773 - 176773

Published: Sept. 1, 2024

Language: Английский

Citations

2
Ultrafast Room‐Temperature Synthesis of Yb3+/Er3+ Codoped K3ZrF7 Nanocrystals for Thermal Enhancement of Upconversion DOI

Huhui Fu,

Wenfeng Xie,

Yuanqi Qian

et al.

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

Published: Dec. 4, 2024

Abstract Lanthanide (Ln 3+ )‐doped upconversion nanocrystals (NCs) have attracted great attention due to their outstanding luminescent performance and wide applications in various fields. However, the preparation of most Ln ‐doped NCs requires rigorous conditions such as high reaction temperature, long time, strict anhydrous oxygen‐free environment, tedious post‐treatment process. Herein, sub‐100 nm Yb /Er codoped K 3 ZrF 7 octahedral are prepared by an extremely simple coprecipitation method (10 s only at room temperature). The resulting show excellent luminescence (UCL), significantly superior both conventional high‐temperature‐synthesized counterparts room‐temperature‐synthesized NaBiF 4 :Yb/Er controls. More importantly, abnormal thermally enhanced UCL over a temperature range from 473 is found these NCs, making them promising candidates for ratiometric thermometry applications. By employing intensity ratio between two non‐thermally coupled energy levels Er , namely F 9/2 2 H 11/2 display extraordinarily absolute sensitivity 443.2% −1 comparatively large relative 1.55% temperature. These results reveal that can not be facilely via ultrafast room‐temperature synthesis, but also hold potential areas optical sensing biological

Language: Английский

Citations

0