Intense NIR emissions at 0.8 μm, 1.47 μm, and 1.53 μm from colloidal LiYbF4:Ln3+ (Ln = Tm3+ and Er3+) nanocrystals
文献信息
Shyam Sarkar, Venkata N. K. B. Adusumalli, Venkataramanan Mahalingam, John A. Capobianco
We report on the synthesis of diamond shaped Ln3+-doped LiYbF4 (Ln = Tm and Er) nanocrystals with flat edges via the thermal decomposition method. Strong near-infrared emissions at 0.8 μm, 1.47 μm and 1.53 μm are observed from colloidal dispersions of Tm3+-doped and Er3+-doped LiYbF4 nanocrystals, respectively, under 0.98 μm diode laser excitation. The NIR emission intensities for Tm3+-doped and Er3+-doped LiYbF4 nanocrystals are comparable with those of the sodium counterpart NaYbF4, suggesting that LiYbF4 is also an excellent host matrix for lanthanide ions to obtain strong NIR emissions in colloidal solutions of LiYbF4 (Tm3+ or Er3+) nanocrystals.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.









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