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Continuous-wave perovskite polariton lasers.
Sci Adv
January 2025
State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China.
Solution-processed semiconductor lasers are next-generation light sources for large-scale, bio-compatible and integrated photonics. However, overcoming their performance-cost trade-off to rival III-V laser functionalities is a long-standing challenge. Here, we demonstrate room-temperature continuous-wave perovskite polariton lasers exhibiting remarkably low thresholds of ~0.
View Article and Find Full Text PDF2.5-dimensional covalent organic frameworks.
Nat Commun
January 2025
Laboratory for Zero-Carbon Energy, Institute of Integrated Research, Institute of Science Tokyo, Tokyo, Japan.
Covalently bonded crystalline substances with micropores have broad applications. Covalent organic frameworks (COFs) are representative of such substances. They have so far been classified into two-dimensional (2D) and three-dimensional (3D) COFs.
View Article and Find Full Text PDFResearch on the Structural and Magnetic Phase Transitions of CeMnGe Alloy.
Inorg Chem
December 2024
Key Laboratory of Advanced Functional Materials, Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China.
Magnetic phase transitions play crucial roles in various material applications, including sensors, actuators, information storage, magnetic refrigeration, and so on. Typically, these magnetic phase transitions exhibit discontinuous first-order phase transitions. When a material undergoes a magnetic phase transition, it often exhibits simultaneous changes in both its crystal and electronic structures.
View Article and Find Full Text PDFFluorene-containing binuclear gold(I) complexes: High-contrast mechanochromic fluorescence quenching and information encryption application.
Spectrochim Acta A Mol Biomol Spectrosc
March 2025
Jiangxi Province Key Laboratory of Organic Functional Molecules; Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China. Electronic address:
Article Synopsis
- A series of fluorene-based gold(I) complexes I-VI were synthesized and analyzed using advanced techniques like NMR and X-ray diffraction.
- The complexes exhibited varying colors of fluorescence (blue-green to yellow) in solid form, which could be altered through positional isomerism and increases in conjugation.
- When ground, the fluorescence of these compounds decreased significantly, particularly complex IV, which demonstrated a strong mechanochromic effect, leading to an innovative dual information encryption system based on its properties.
3D Crystal Construction by Single-Crystal 2D Material Supercell Multiplying.
Adv Sci (Weinh)
January 2025
School of Engineering, Westlake University, Hangzhou, 310030, China.
2D stacking presents a promising avenue for creating periodic superstructures that unveil novel physical phenomena. While extensive research has focused on lateral 2D material superstructures formed through composition modulation and twisted moiré structures, the exploration of vertical periodicity in 2D material superstructures remains limited. Although weak van der Waals interfaces enable layer-by-layer vertical stacking, traditional methods struggle to control in-plane crystal orientation over large areas, and the vertical dimension is constrained by unscalable, low-throughput processes, preventing the achievement of global order structures.
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