Fengmei Zhu

Nov 11, 2024 | dx.doi.org | Fengmei Zhu |Yuan Gao |Jianbei Qiu

Oct 22, 2024 | dx.doi.org | Fengmei Zhu |Yuan Gao |Jianbei Qiu

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.

Jul 10, 2023 | pubs.rsc.org | Fengmei Zhu |Yuan Z. Gao |Junjie Ding |Jianbei Qiu

Synergistic enhancement of the near-infrared luminescence properties of Ni2+-doped SrTiO3 perovskite phosphors and their application† Fengmei Zhu,a   Yuan Gao, *ab   Junjie Dinga  and  Jianbei Qiu *ab   Abstract Near-infrared phosphor-converted light-emitting diodes (NIR pc-LED) are a new type of solid-state NIR light source that has been used in integrated near-infrared spectroscopy and biomedical imaging.