来源：ACS PublicationsRare-earth (RE) doping has proven to be effective in enhancing the luminescent and optoelectronic properties of halide perovskites (HPs). However, the growth of RE-doped halide perovskite single crystals remains challenging. Herein, we successfully synthesized nine distinct MAPbBr3:RE (RE = Yb, Eu, Tb) single crystals (6–8 mm in size, RE/Pb = 0.008–0.053%) through systematic optimization of RE reagents, growth temperature, and solution concentration. Structural and optical characterization revealed RE-induced lattice expansion and band gap modulation, confirming the effectiv...
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2026
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来源：ACS PublicationsTo meet the requirements for remote optical thermometry, Er3+- and Ho3+-doped Cs2NaYbCl6 double perovskites with intense upconversion (UC) emissions were designed. Excited by 980 nm, characteristic emissions of Er3+ and Ho3+ were detected, with optimal doping concentrations of 30 and 50 mol % in the Cs2NaYbCl6 host, respectively. The near-infrared light-triggered UC luminescence mechanism was investigated through the pump power-dependent UC emission spectra. Moreover, using the fluorescence intensity ratio (FIR) technique, temperature sensing performance was explored by anal...
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2026
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来源：ACS PublicationsPhotoacoustic imaging (PAI) has emerged as a promising noninvasive biomedical imaging modality with high spatial resolution and soft tissue contrast. Exogenous contrast agents play a crucial role in enhancing the sensitivity and specificity of PAI. Among these contrast agents, the rare earth materials (REM) have garnered a lot of interest due to their near-infrared (NIR) absorption properties. REM established itself as a well-known entity in the field of bioimaging and therapy due to their optical, magnetic, and photothermal characteristics. The photoacoustic phenomenon of R...
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2026
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来源：ACS PublicationsAs the importance of rare earth metals in high-tech equipment and defense industries continues to increase, optimizing the performance of rare earth electrolytic cells has become increasingly crucial for enhancing energy efficiency and production effectiveness. Based on the issue of gas stagnation at the anode bottom in the bottom cathode rare earth electrolytic cells, this study proposes an optimized anode structure aiming to improve bubble emission, flow field characteristics, and the stability of the electrolysis process. The bubble dynamics and flow field characteristics...
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2026
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