Enhancement of green upconversion luminescence of Yb3+/Tb3+ co-doped BiOBr nanosheets and its potential applications in photocatalysis

SrF2:Yb3+,Er3+ NPs were synthesized by the hydrothermal method and their luminescence mechanism was discussed in detail, which provided a theoretical basis for further understanding the properties of the materials.

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Upconversion luminescence in Tm3+/Yb3+co-doped double-clad silica fibers under 980 nm cladding pumping

Journal of Modern Optics ◽

10.1080/09500340.2011.636154 ◽

2012 ◽

Vol 59 (6) ◽

pp. 527-532 ◽

Cited By ~ 8

Author(s):

A. Halder ◽

M.C. Paul ◽

S.S.A. Damanhuri ◽

N.A.D. Huri ◽

A. Hamzah ◽

...

Keyword(s):

Upconversion Luminescence ◽

Silica Fibers ◽

Co Doped

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Green Lighting Upconversion Luminescence of Yb3+, Er3+ Co-Doped BaMoO4

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2013.7675 ◽

2013 ◽

Vol 13 (9) ◽

pp. 6089-6091

Author(s):

Jun Ho Chung ◽

Sang Yeop Lee ◽

Suk Hyun Kang ◽

Sae Am Kim ◽

Kwang Bo Shim ◽

...

Keyword(s):

Upconversion Luminescence ◽

Co Doped

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Upconversion Luminescence Properties of Ho3+, Tm3+, Yb3+ Co-Doped Nanocrystal NaYF4 Synthesized by Hydrothermal Method

Journal of Rare Earths ◽

10.1016/s1002-0721(07)60024-6 ◽

2006 ◽

Vol 24 (6) ◽

pp. 757-760 ◽

Cited By ~ 23

Author(s):

Yang Kuisheng ◽

Li Yan ◽

Yu Chaoyi ◽

Lu Liping ◽

Ye Chanhua ◽

...

Keyword(s):

Hydrothermal Method ◽

Upconversion Luminescence ◽

Luminescence Properties ◽

Co Doped

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Effect of Tm3+ Concentration and Temperature on Blue and NIR Upconversion Luminescence in Tm3+/Yb3+ Co-Doped NaY(WO4)2 Microstructures

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2016.10890 ◽

2016 ◽

Vol 16 (1) ◽

pp. 636-642 ◽

Cited By ~ 4

Author(s):

Suyuan Xiang ◽

Hui Zheng ◽

Yanqiu Zhang ◽

Tianxiang Peng ◽

Xiangqing Zhang ◽

...

Keyword(s):

Upconversion Luminescence ◽

Co Doped

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Effect of Yb3+ concentration on upconversion luminescence in Yb3+, Tm3+ co-doped Lu2O3 nanophosphors

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2013.10.122 ◽

2014 ◽

Vol 586 ◽

pp. 555-560 ◽

Cited By ~ 30

Author(s):

Li Li ◽

Huihui Lin ◽

Xiaoqi Zhao ◽

Yongjie Wang ◽

Xianju Zhou ◽

...

Keyword(s):

Upconversion Luminescence ◽

Co Doped

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Modulation of Ferroelectric and Optical Properties of La/Co-Doped KNbO3 Ceramics

Nanomaterials ◽

10.3390/nano11092273 ◽

2021 ◽

Vol 11 (9) ◽

pp. 2273

Author(s):

Xue Zhang ◽

Ruijuan Qi ◽

Shangwei Dong ◽

Shuai Yang ◽

Chengbin Jing ◽

...

Keyword(s):

Ferroelectric Properties ◽

Cubic Phase ◽

Bandgap Engineering ◽

La Doping ◽

Co Doping ◽

Extrinsic Defect ◽

Potential Applications ◽

Defect Levels ◽

Microscopic Morphology ◽

Co Doped

The phase transition, microscopic morphology and optical and ferroelectric properties are studied in a series of La- and Co-doped KNbO3-based ceramics. The results show that the doping induces the transformation from the orthorhombic to the cubic phase of KNbO3, significantly reduces the optical bandgap and simultaneously evidently improves the leakage, with a slight weakening of ferroelectric polarization. Further analysis reveals that (i) the Co doping is responsible for the obvious reduction of the bandgap, whereas it is reversed for the La doping; (ii) the slight deterioration of ferroelectricity is due to the doping-induced remarkable extrinsic defect levels and intrinsic oxygen vacancies; and (iii) the La doping can optimize the defect levels and inhibit the leakage. This investigation should both provide novel insight for exploring the bandgap engineering and ferroelectric properties of KNbO3, and suggest its potential applications, e.g., photovoltaic and multifunctional materials.

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