98%
921
2 minutes
20
Yb3+/Tm3+ codoped KLa(MoO4)2 phosphors are synthesized by a hydrothermal method. Under 980 nm excitation, the upconversion (UC) emission spectra of the phosphors are observed. The temperature sensing characteristic based on the fluorescence intensity ratio is studied. The maximum sensitivity reaches 2.93% K-1 at 453 K. The sensitivity value of non-thermally coupled levels is higher than that of thermally coupled levels. The results indicate that the KLa(MoO4)2:Yb3+/Tm3+ phosphor could be used in temperature sensors.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/d0dt03979a | DOI Listing |
Commun Chem
September 2025
Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, Dresden, Germany.
Purely organic materials showing efficient and persistent emission via room temperature phosphorescence (RTP) allow the design of minimalistic yet powerful technological solutions for sensing, bioimaging, information storage, and safety applications using the photonic design principle of digital luminescence. Although several promising materials exist, a deep understanding of the underlying structure-property relationship and, thus, development of rational design strategies are widely missing. Some of the best purely organic emitters follow the donor-acceptor-donor design motif.
View Article and Find Full Text PDFPhysiol Rep
September 2025
Department of Sports Medicine, Japan Institute of Sports Sciences, Kita-ku, Tokyo, Japan.
Among the different forms of hydrotherapy, carbon dioxide (CO) water immersion improves peripheral vasodilation and blood flow compared with tap water immersion; however, the heat stress placed on the body through CO water immersion and the appropriate immersion protocols are uncertain. Therefore, this study aimed to compare the thermoregulatory responses during CO and tap water immersions. The participants were 10 male college baseball players.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, PR China. Electronic address:
Ionic conductive hydrogels show promise for flexible sensors in wearables and e-skins, but balancing mechanical strength with high conductivity remains challenging. Herein, a triple-network ionic conductive hydrogel based on poly(acrylic acid) (PAA) was developed, synergistically reinforced by dissolved cellulose (dCel) and aramid nanofibers (ANF), with Al/Zn bimetallic ions serving as the conductive medium. Intriguingly, dCel was in-situ generated using the concentrated Al/Zn bimetallic salt solutions as the cellulose solvent, following the complete dissolution of the pulp fibers driven by the intensive ionic hydration of Al/Zn ions.
View Article and Find Full Text PDFBiosens Bioelectron
September 2025
School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, Guangxi, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning, 530004, China. Electronic address:
The practical implementation of wearable sensing devices for human health monitoring requires significant advancements in lightweight design and multifunctional integration. Fiber-shaped sensors have attracted considerable research attention due to their ability to maintain exceptional sensitivity and measurement accuracy under various mechanical deformations, including bending, stretching, and torsion. Nevertheless, the functional integration remains constrained, particularly as evidenced by sensitivity degradation and device failure under extreme high-temperature conditions, which severely hinders their practical applicability for real-time health monitoring applications in complex environmental scenarios.
View Article and Find Full Text PDFACS Sens
September 2025
School of Physics and Electric Engineering, Linyi University, Linyi 276000, China.
In this study, employing a 2D electrodeposition in situ assembly method, a high-performance HS sensor based on a p-n type CuO-CuFeO heterostructure ordered nanowire arrays was successfully fabricated on silicon substrates. Compared to CuO, CuO-CuFeO nanowire arrays exhibits an ideal interfacial barrier structure and higher initial resistance, with a response to 10 ppm of HS at room temperature (20 ± 3 °C) increased by 225 times and a response time reduced by over 2400 s. The sensor demonstrates exceptional sensitivity (LOD = 10 ppb; response = 234.
View Article and Find Full Text PDF