Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Hua-Jun Wu"'
Publikováno v:
Journal of Materials Chemistry C. 9:12342-12352
Laser-driven white lighting has drawn great attention due to its high-brightness, high efficiency and compact size. However, the current laser lighting usually suffers from a low color rendering (Ra ∼ 60) due to the presence of a wide “Cyan cavit
Autor:
Hao Wu, Liangliang Zhang, Yongshi Luo, Hua-Jun Wu, Xia Zhang, Dashuai Sun, Feng Liu, Zhendong Hao, Zhang Jiahua, Lin Yang
Publikováno v:
Dalton Transactions. 49:17779-17785
The indispensable broad-band red phosphors for LED lighting generally show a long emission tail for wavelengths longer than 650 nm, which consumes excitation energy but contributes little luminance. Here, we report, for the first time, a broad red em
Autor:
Hua-Jun Wu, Xia Zhang, Liangliang Zhang, Ligong Zhang, Haifeng Zhao, Jiahua Zhang, Guohui Pan, Zhendong Hao
Publikováno v:
Journal of the American Ceramic Society. 102:4919-4928
Autor:
Liangliang Zhang, Hao Wu, Hua-Jun Wu, Zhendong Hao, Yongshi Luo, Jiahua Zhang, Qingran Wang, Guohui Pan, Quanquan Mu
Publikováno v:
Journal of Alloys and Compounds. 895:162516
Er3+ and Yb3+ codoped Gd2Mo4O15 upconversion (UC) phosphors are synthesized by high temperature solid state reaction. The crystalline phase and morphology are studied in detail by X-ray diffraction (XRD), Raman spectroscopy and scanning electron micr
Autor:
Yongshi Luo, Guohui Pan, Zhendong Hao, Jiahua Zhang, Hua-Jun Wu, Ligong Zhang, Liangliang Zhang, Xia Zhang, Haifeng Zhao, Sheng Zhang
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Blue-emitting phosphors for near ultraviolet (NUV) based tri-color RGB phosphor blend converted white light emitting diodes (LEDs) have been extensively investigated in the past few years. LED chip peaked near 400 nm is the most efficient among the N
Autor:
Hua-Jun Wu, Jiahua Zhang, Yongshi Luo, Xia Zhang, Zhendong Hao, Guohui Pan, Xuewei Ba, Liangliang Zhang
Publikováno v:
Inorganic Chemistry. 56:13062-13069
Er3+-induced intensity enhancement of ∼2 μm emission is observed in 2 atom % Tm3+ doped Lu2O3 under 782 nm excitation. The maximum enhancement reaches 41.9% with only 0.05 atom % Er3+. Er3+ introduces a new quantum cutting process which is proved
Autor:
Liangliang Zhang, Hua-Jun Wu, Yongshi Luo, Ying Wang, Zhendong Hao, Jiahua Zhang, Guohui Pan, Xia Zhang
Publikováno v:
Optical Materials. 71:1-4
In this paper, we synthesized series of Eu 2+ activated CaO ceramic powders by conventional solid state reaction. Using NH 4 Cl as a reducing additives, the Eu 3+ has been successfully reduced to Eu 2+ . An intense blue emission peaked at 460 nm from
Publikováno v:
Laser & Photonics Reviews. 15:2170038
Publikováno v:
Laser & Photonics Reviews. 15:2100060
Publikováno v:
Advanced Optical Materials. 9:2001660
Phosphor‐converted light‐emitting diodes (pc‐LEDs) with broadband near‐infrared (NIR) emission have emerged as compact light sources for portable NIR spectroscopy. However, the associated broadband NIR phosphors suffer from low quantum effici