98%
921
2 minutes
20
White-light-emitting materials have attracted considerable attention because of their applications, such as large-surface emitting devices. Inorganic phosphor films are expected to be applied to these devices because of good chemical stability; however, a substantial reduction of fabrication temperature is required for future industrial uses such as lighting materials fabricated onto flexible organic substrates. Here we show the optical properties of white-light-emitting metavanadate phosphors, AVO3 (A: K, Rb and Cs), and we report a new direct fabrication process for RbVO3 films onto flexible polyethylene terephthalate (PET) substrates by means of a vacuum ultraviolet irradiation using an excimer lamp. In addition, the (Ca,Sr,Pr)TiO3/a-Al2O3/RbVO3/PET heterostructure prepared by an excimer-laser-assisted metal-organic deposition process has demonstrated the possibility of colour modification for RbVO3 films on PET. Our findings suggest new possibilities for further development of large-surface emitting lighting devices.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1038/nmat2244 | DOI Listing |
Adv Drug Deliv Rev
September 2025
State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China; Shanghai Key Laboratory of Cancer System Regulation and Clinical Translation, Jiading District Central Hospital, Renji Hospital J
DNA exhibits remarkable versatility, which is attributed to its inherent molecular recognition capabilities, programmable sequences, and excellent biocompatibility. Among its various topological forms, branched DNA (bDNA), including Y-shaped DNA (Y-DNA), X-shaped DNA (X-DNA), etc., stands out as a fundamental building block for fabricating functional DNA-based materials and has demonstrated great promise across diverse applications in recent years.
View Article and Find Full Text PDFAdv Healthc Mater
September 2025
Department of Mechanical Engineering, University of Arkansas, Fayetteville, AR, 72701, USA.
3D scaffold architecture is critical for directing human neural stem cell (hNSC) fate and spatial organization. In this study, two-photon lithography (TPL) is used to fabricate microcapillary scaffolds based on the Hilbert space-filling curve as biomimetic basement membrane structures for guiding hippocampal-derived hNSC differentiation. The scaffolds feature 80 µm lumens with porous ellipsoidal membranes suspended above the substrate to provide topographical cues and permit nutrient diffusion while maintaining mechanical stability.
View Article and Find Full Text PDFBiomater Adv
August 2025
School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China. Electronic address:
Hemorrhagic control remains a serious concern in emergency medicine and combat trauma management, where achieving rapid hemostasis significantly impacts patient survival outcomes. While conventional interventions including direct manual compression and tourniquet application demonstrate clinical efficacy in routine scenarios, their limitations become apparent when managing catastrophic hemorrhage or anatomically complex injuries. Mineral-based hemostatic agents, particularly clay-derived rapid hemostats, have emerged as a promising therapeutic modality that synergizes ancestral wound management practices with contemporary material engineering.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, National Center for International Research on Catalytic Technology, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China.
Seawater electrolysis offers a sustainable pathway for green hydrogen production, but chloride-induced side reactions, particularly chlorine evolution (ClER), limit the stability and efficiency of catalysts. Based on an interface-engineering strategy, a bifunctional CoP-MXene electrocatalyst was designed and fabricated, in which electrons are transferred from the Ti sites of the MXene support to the adjacent Co active centers of CoP. This directional electron donation modulates the Co electronic structure, generating electron-rich Co sites that effectively suppress Cl adsorption via electronic repulsion while preserving the OH reaction pathways through favorable proton-electron coupling.
View Article and Find Full Text PDFSmall
September 2025
Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China.
Thick electrode is a critical strategy to increase the energy density of lithium-ion batteries(LiBs) by maximizing the active material loading. However, their practical application is obstructed by kinetic limitations, including low charge transfer efficiency and poor mechanical stability, which severely decrease rate capability, cycling performance, and safety. This review focuses on an intensive analysis of the problems with thick electrodes in terms of ion transfer kinetics, electron transfer discontinuities, and poor mechanical stability.
View Article and Find Full Text PDF