Regulation of red to near-infrared emission in Mn2+ single doped magnesium zinc phosphate solid-solution phosphors by modification of the crystal field

2015 ◽  
Vol 3 (48) ◽  
pp. 12443-12449 ◽  
Author(s):  
Y. Y. Ma ◽  
J. Q. Hu ◽  
E. H. Song ◽  
S. Ye ◽  
Q. Y. Zhang
Keyword(s):  
Solid Solution ◽  
Field Strength ◽  
Crystal Field ◽  
Near Infrared ◽  
Zinc Phosphate ◽  
Local Environment ◽  
Infrared Emission ◽  
Crystal Field Strength ◽  
Near Infrared Emission

The different Mg/Zn ratios of (Mg1−xZnx)2.97(PO4)2:0.03Mn2+ result in various PL intensities and spectra profiles, which are related to the crystal field strength and local environment of the Mn2+ ions.

Spectroscopic investigations of near-infrared emission from Nd3+-doped zinc-phosphate glasses: Judd-Ofelt evaluation

2019 ◽  
Vol 509 ◽  
pp. 106-114 ◽  
Author(s):  
Zahra Ashur Said Mahraz ◽  
E.S. Sazali ◽  
M.R. Sahar ◽  
Nur Ulfah Amran ◽  
S.N.S. Yaacob ◽  
...  
Keyword(s):  
Near Infrared ◽  
Zinc Phosphate ◽  
Infrared Emission ◽  
Phosphate Glasses ◽  
Spectroscopic Investigations ◽  
Near Infrared Emission

Theoretical Studies of the Spin Hamiltonian Parameters and Local Distortions for Cu2+ in Alkaline Earth Lead Zinc Phosphate Glasses

2016 ◽  
Vol 71 (8) ◽  
pp. 769-775 ◽  
Author(s):  
Bo-Kun Wang ◽  
Shao-Yi Wu ◽  
Zi-Yi Yuan ◽  
Zi-Xuan Liu ◽  
Shi-Xin Jiang ◽  
...  
Keyword(s):  
Field Strength ◽  
Crystal Field ◽  
Alkaline Earth ◽  
Zinc Phosphate ◽  
Phosphate Glasses ◽  
Spin Hamiltonian ◽  
Local Structures ◽  
Crystal Field Strength ◽  
Lead Zinc ◽  
Hamiltonian Parameters

AbstractThe spin Hamiltonian parameters and local structures are theoretically studied for Cu2+-doped alkaline earth lead zinc phosphate (RPPZ, R=Mg, Ca, Sr, and Ba) glasses based on the high-order perturbation calculations for a tetragonally elongated octahedral 3d9 cluster. The relative elongation ratios are found to be ρ≈3.2%, 4.4%, 4.6%, and 3.3% for R=Mg, Ca, Sr, and Ba, respectively, because of the Jahn-Teller effect. The whole decreasing crystal-field strength Dq and orbital reduction factor k from Mg to Sr are ascribed to the weakening electrostatic coulombic interactions and the increasing probability of productivity of nonbridge oxygen (and hence increasing Cu2+–O2− electron cloud admixtures) under PbO addition, respectively, with increasing alkali earth ionic radius. The anomalies (the largest Dq and the next highest k among the systems) for R=Ba are attributed to the cross linkage of this large cation in the network. The overall increasing order (Mg≤Ba<Ca<Sr) of ρ is largely due to the decreasing crystal-field strength Dq and hence the decreasing force constant of the Cu2+–O2− bonds. The present studies would be helpful to understand local structures and the influences on the optical properties of RPPZ glasses containing copper dopants.

Broadband deep‐red‐to‐near‐infrared emission from Mn 2+ in strong crystal‐field of nitride MgAlSiN 3

2020 ◽  
Vol 103 (12) ◽  
pp. 6793-6800
Author(s):  
Shengqiang Liu ◽  
Shiyou Zhang ◽  
Ning Mao ◽  
Zhen Song ◽  
Quanlin Liu
Keyword(s):  
Crystal Field ◽  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

scholarly journals Amphiprotism-Coupled Near-Infrared Emission in Extended Pyrazinacenes Containing Seven Linearly Fused Pyrazine Units

2019 ◽  
Vol 141 (50) ◽  
pp. 19570-19574 ◽  
Author(s):  
Gary J. Richards ◽  
Aël Cador ◽  
Shinji Yamada ◽  
Anna Middleton ◽  
Whitney A. Webre ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

Broadband near-infrared emission of K3ScF6:Cr3+ phosphors for night vision imaging system sources

2021 ◽  
Vol 417 ◽  
pp. 129271
Author(s):  
Haojun Yu ◽  
Jian Chen ◽  
Ruiyu Mi ◽  
Juyu Yang ◽  
Yan-gai Liu
Keyword(s):  
Near Infrared ◽  
Imaging System ◽  
Infrared Emission ◽  
Night Vision ◽  
Near Infrared Emission

Broadband near infrared emission of Er3+/Yb3+ co-doped fluorotellurite glass

2021 ◽  
Vol 866 ◽  
pp. 158568
Author(s):  
Jiaming Liu ◽  
Xin Huang ◽  
Heng Pan ◽  
Xu Zhang ◽  
Xiujie Fang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission ◽  
Co Doped

Ab Initio Two-sites Occupancy and Broadband Near-Infrared Emission of Cr3+ in Li2MgZrO4

2021 ◽  
Author(s):  
Xue Zhou ◽  
Jinmeng Xiang ◽  
Jiming Zheng ◽  
Xiaoqi Zhao ◽  
Hao Suo ◽  
...  
Keyword(s):  
Plant Growth ◽  
Ab Initio ◽  
Light Source ◽  
Near Infrared ◽  
Broad Band ◽  
Infrared Emission ◽  
Night Vision ◽  
Light Emitting ◽  
Non Destructive ◽  
Near Infrared Emission

Near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) light source have great potential in non-destructive detection, promoting plant growth and night vision applications, while the discovery of a broad-band NIR phosphor still...

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