Effective sensitization of Yb3+ ions on Yb3+/Nd3+ co-doped fluoroborate glasses for NIR luminescence applications

2021 ◽  
Vol 121 ◽  
pp. 111592
Author(s):  
K. Sriramulu ◽  
K. Swapna ◽  
M. Venkateswarlu ◽  
Sk. Mahamuda ◽  
A.S. Rao
Keyword(s):  
Nir Luminescence ◽  
Co Doped

A general strategy via charge transfer sensitization to achieve efficient NIR luminescence in lanthanide-doped NaGdS2 nanocrystals

2021 ◽  
Vol 9 (15) ◽  
pp. 5148-5153
Author(s):  
Shiteng Wang ◽  
Chunguang Zhang ◽  
Wei Zheng ◽  
Zhongliang Gong ◽  
Ping Huang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Quantum Yields ◽  
General Strategy ◽  
Nir Luminescence ◽  
Co Doped

A strategy based on S2−-to-Yb3+ charge transfer sensitization is developed to achieve efficient NIR luminescence in Yb3+ singly-doped and Yb3+/Er3+ co-doped NaGdS2 nanocrystals with quantum yields up to 21.2% and 25.0%, respectively.

Ag+-sensitized lanthanide luminescence in Ln3+ post-functionalized metal–organic frameworks and Ag+ sensing

2015 ◽  
Vol 3 (9) ◽  
pp. 4788-4792 ◽  
Author(s):  
Ji-Na Hao ◽  
Bing Yan
Keyword(s):  
Energy Transfer ◽  
Metal Organic Frameworks ◽  
Intramolecular Energy Transfer ◽  
Lanthanide Luminescence ◽  
New Class ◽  
Metal Organic ◽  
Nir Luminescence ◽  
Co Doped

A new class of lanthanide luminescent MOFs was constructed by encapsulating Ln3+ into the pores of MIL-121 (Ln3+@MIL-121). Ag+ was found to be able to greatly enhance the weak visible or NIR luminescence of Ln3+@MIL-121 since it can induce more efficient intramolecular energy transfer from the ligand to Ln3+ in Ag–Ln co-doped MOFs.

scholarly journals Regulating the Bi NIR luminescence behaviours in fluorine and nitrogen co-doped germanate glasses

2021 ◽  
Author(s):  
Fuguang Chen ◽  
Yafei Wang ◽  
Weiwei Chen ◽  
Puxian Xiong ◽  
Bofan Jiang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Potential Application ◽  
Optical Amplifier ◽  
Germanate Glass ◽  
Nir Luminescence ◽  
Co Doped ◽  
Germanate Glasses ◽  
Tunable Fiber Laser

Bi-doped nitridated germanate glass covering the whole NIR from 800~1600 nm has attracted great attention due to the potential application in tunable fiber laser and optical amplifier. However, it remains...

Electronic and luminescence characteristics of Bi/Al co-doped silica optical fiber

2019 ◽  
Vol 33 (27) ◽  
pp. 1950325
Author(s):  
Gang Liu ◽  
Yanliang Guo ◽  
Pengfei Zhu ◽  
Baonan Jia ◽  
Shanjun Li ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Near Infrared ◽  
Luminescence Center ◽  
Al Substitution ◽  
Substitution Site ◽  
Silica Optical Fiber ◽  
Luminescence Characteristics ◽  
Nir Luminescence ◽  
Co Doped

Electronic and luminescence characteristics of Bi/Al co-doped silica optical fiber model were investigated by using first-principle methods. Our results show that the preference Al substitution site is the adjacent Si site rather than O site. The doping of Al can contribute to the dispersion of Bi[Formula: see text] luminescence center and generate new luminescence center at [Formula: see text]1100 nm by affecting [Formula: see text] orbital of the O atom near Bi atom. Our results give a possible explanation of the near-infrared (NIR) luminescence in Bi/Al co-doped silica optical fibers.

Visible up-conversion and NIR luminescence studies of LiAl5O8:Er phosphor co-doped with Yb3+ and Zn2+

2009 ◽  
Vol 97 (1) ◽  
pp. 103-107 ◽  
Author(s):  
V. Singh ◽  
V. K. Rai ◽  
I. Ledoux-Rak ◽  
H.-Y. Kwak
Keyword(s):  
Nir Luminescence ◽  
Co Doped

scholarly journals BAC Photobleaching in Bismuth-Doped and Bismuth/Erbium Co-Doped Optical Fibers

2020 ◽  
Author(s):  
Bowen Zhang ◽  
Mingjie Ding ◽  
Shuen Wei ◽  
Binbin Yan ◽  
Gang-Ding Peng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
High Performance ◽  
Near Infrared ◽  
Laser Exposure ◽  
Active Centers ◽  
Irradiation Intensity ◽  
Nir Luminescence ◽  
Co Doped ◽  
Irradiation Wavelength

Bismuth-doped optical fiber (BDF) and bismuth/erbium co-doped optical fiber (BEDF) have attracted much attention due to their ultra-broadband luminescence in the near-infrared (NIR) region. The photobleaching effect on bismuth active centers (BACs) related to the NIR luminescence has been systematically investigated and summarized, in terms of irradiation intensity, irradiation wavelength, and temperature. All these findings not only give the deep insights into the fundamental structure of BACs but also provide an effective way to control the BACs. They play an important role for the development of BDF- and BEDF-based devices with high performance and stability under laser exposure in future.

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