Yuan Z. Gao

Sep 16, 2024 | pubs.rsc.org | Fengmei Zhu |Yuan Z. Gao |Jianbei Qiu

Long-wavelength near-infrared light emitting Ni2+-doped double perovskite molybdate-based solid-solution phosphors† Long wavelength near-infrared (LWNIR) light (1000–2000 nm) has great potential in the field of biomedical imaging, non-visual illumination, and non-destructive detection. However, currently, such as Cr3+ and Ni2+ can achieve broadband NIR emission, but their emission wavelengths are under 1600 nm with limited tunability.

Sep 11, 2024 | pubs.rsc.org | Fengmei Zhu |Yuan Z. Gao |Jianbei Qiu

High performance NIR-I to NIR-II emission of a Cr3+-doped Cs2NaLuCl6 phosphor with an IQE and EQE of up to 92.9% and 60.75%† Presently, there is a need to expand the near-infrared (NIR) emission range, especially in the bio-transparent window, to improve the internal quantum efficiency and external quantum efficiency, and to minimize the shortcomings of luminescence properties.

Aug 15, 2024 | nature.com | Ning Xi |Yuan Z. Gao |Yang Qi |Wei Li |Enze Lv

AbstractTraditional magnetic sub-Kelvin cooling relies on the nearly free local moments in hydrate paramagnetic salts, whose utility is hampered by the dilute magnetic ions and low thermal conductivity. Here we propose to use instead fractional excitations inherent to quantum spin liquids (QSLs) as an alternative, which are sensitive to external fields and can induce a very distinctive magnetocaloric effect.

Aug 15, 2024 | nature.com | Ning Xi |Yuan Z. Gao |Yang Qi |Wei Li |Enze Lv

AbstractTraditional magnetic sub-Kelvin cooling relies on the nearly free local moments in hydrate paramagnetic salts, whose utility is hampered by the dilute magnetic ions and low thermal conductivity. Here we propose to use instead fractional excitations inherent to quantum spin liquids (QSLs) as an alternative, which are sensitive to external fields and can induce a very distinctive magnetocaloric effect.

Mar 11, 2024 | hk.news.yahoo.com | Yuan Z. Gao

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