Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Hua-Jun Wu"'
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:
Zhengdong Hao, Guohui Pan, Xia Zhang, Liangliang Zhang, Hua-Jun Wu, Haifeng Zhao, Jiahua Zhang, Yu Xiao, Yongshi Luo, Hao Wu
Publikováno v:
The Journal of Physical Chemistry C. 122:9611-9618
The red emission through upconversion (UC) upon 980 nm excitation based on Er3+/Yb3+ combination is very attractive for bioimaging applications. The intensity of the red emission is observed to be strongly dependent on the host materials. However, th
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
Autor:
Hua-Jun Wu, Jiahua Zhang, Liangliang Zhang, Haifeng Zhao, Wen Liu, Guohui Pan, Zhendong Hao, Yongshi Luo, Guotao Xiang, Xia Zhang
Publikováno v:
Journal of Materials Science: Materials in Electronics. 28:8017-8022
Near-infrared downconversion phenomenon has been demonstrated in Lu2O3: Tm3+/Yb3+ phosphor upon direct excitation of Tm3+:1G4 level at 463 nm. The efficient energy transfer from Tm3+: 1G4 → Yb: 2F5/2 has been elucidated by the excitation spectra, t
Publikováno v:
Inorganic Chemistry. 55:9736-9741
Luminescence property of low-concentration Eu2+-doped SrAlSi4N7:Ce3+ yellow phosphor is reported in this paper. Three optical centers Ce1, Ce2, and Eu2 are observed in the phosphor. Deconvolution of emission spectrum confirms the three centers to be
Autor:
Liangliang Zhang, Jiahua Zhang, Yunpeng Wang, Zhendong Hao, Dongxu Zhao, Hua-Jun Wu, Guohui Pan, Xia Zhang, Hao Wu
Publikováno v:
Optical Materials Express. 8:3615
High quality thulium doped Lu1.6Sc0.4O3 mixed sesquioxide laser ceramics were fabricated using a solid-state reactive sintering method. Optical and spectroscopic properties of the ceramics were studied. A high transmittance almost identical to the th