Optical Investigations in Er3+/Yb3+ Co-Doped Nanostructured Phosphate Glass Ceramics

2013 ◽  
Vol 798-799 ◽  
pp. 67-70 ◽  
Author(s):  
Xiao Chen Yu ◽  
Ai Bin Hao ◽  
Shao Wei Liang ◽  
Zhong Wang Sun
Keyword(s):  
Phosphate Glass ◽  
Near Infrared ◽  
Glass Ceramics ◽  
Wavelength Region ◽  
Infrared Emission ◽  
Effective Bandwidth ◽  
Ligand Field ◽  
Crystal Lattices ◽  
Upconversion Emissions ◽  
Co Doped

Er3+/Yb3+co-doped transparent phosphate glass ceramics were fabricated and characterized optically. The formation of nanocrystals is confirmed by x-ray diffraction. Stark split near infrared emission peaks of Er3+have been observed in the glass ceramics, and the effective bandwidth increases with increasing annealing temperature. Upconversion emissions of Er3+in the glass ceramics under 975nm wavelength excitation, especially in the green wavelength region, are enhanced. The results can be attributed to the enhancement of ligand field due to incorporation of Er3+ions into the crystal lattices.

Greatly enhanced broadband near-infrared emission due to energy transfer from Cr3+ to Ni2+ in transparent magnesium aluminosilicate glass ceramics

2009 ◽  
Vol 24 (2) ◽  
pp. 310-315 ◽  
Author(s):  
Jin Luo ◽  
Shifeng Zhou ◽  
Botao Wu ◽  
Hucheng Yang ◽  
Song Ye ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Glass Ceramics ◽  
Infrared Emission ◽  
Aluminosilicate Glass ◽  
Nanocrystalline Phase ◽  
Doped Glass ◽  
Near Infrared Emission ◽  
532 Nm ◽  
Co Doped

Cr3+/Ni2+ co-doped optically transparent magnesium aluminosilicate glass-ceramics containing MgAl2O4 nanocrystals have been prepared by heat-treatment. Greatly enhanced broadband near-infrared emission centered at 1216 nm in Cr3+/Ni2+ co-doped glass ceramics is observed when compared with the Ni2+ single-doped glass ceramics under 532 nm excitation. The observed enhancement of infrared emission is attributed to the energy transfer from Cr3+ to Ni2+ ions in the nanocrystalline phase, which leads to the emission due to 3T2(3F) → 3A2(3F) transition of octahedral Ni2+ ions.

Super broadband near-infrared emission and energy transfer in Nd–Bi–Er co-doped transparent silicate glass-ceramics

2019 ◽  
Vol 234 ◽  
pp. 142-147 ◽  
Author(s):  
Ho Kim Dan ◽  
Jianbei Qiu ◽  
Dacheng Zhou ◽  
Qing Jiao ◽  
Rongfei Wang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Silicate Glass ◽  
Near Infrared ◽  
Glass Ceramics ◽  
Infrared Emission ◽  
Near Infrared Emission ◽  
Co Doped

Broadband near-infrared emission from Tm3+∕Er3+ co-doped nanostructured glass ceramics

2007 ◽  
Vol 101 (11) ◽  
pp. 113511 ◽  
Author(s):  
Daqin Chen ◽  
Yuansheng Wang ◽  
Feng Bao ◽  
Yunlong Yu
Keyword(s):  
Near Infrared ◽  
Glass Ceramics ◽  
Infrared Emission ◽  
Near Infrared Emission ◽  
Co Doped

Superbroadband near-infrared emission from Cr–Ni co-doped transparent forsterite glass ceramics

2010 ◽  
Vol 43 (9) ◽  
pp. 095401 ◽  
Author(s):  
Yixi Zhuang ◽  
Miaojia Guan ◽  
Junhua Xie ◽  
Yu Teng ◽  
Jiajia Zhou ◽  
...  
Keyword(s):  
Near Infrared ◽  
Glass Ceramics ◽  
Infrared Emission ◽  
Near Infrared Emission ◽  
Co Doped

Spectroscopic properties of Er/Yb co-doped glass ceramics containing nanocrystalline Bi2ZnB2O7 for broadband near-infrared emission

2019 ◽  
Vol 45 (15) ◽  
pp. 18831-18837 ◽  
Author(s):  
Mingming Li ◽  
Jiapan Luan ◽  
Yin Zhang ◽  
Feng Jiang ◽  
Xiang Zhou ◽  
...  
Keyword(s):  
Near Infrared ◽  
Glass Ceramics ◽  
Spectroscopic Properties ◽  
Infrared Emission ◽  
Doped Glass ◽  
Near Infrared Emission ◽  
Co Doped

Enhanced visible to near-infrared quantum cutting in Tb and Yb co-doped oxyfluoride glass-ceramic

2012 ◽  
Vol 1471 ◽  
Author(s):  
Z. Pan ◽  
G. Sekar ◽  
R. Akrobetu ◽  
R. Mu ◽  
S. H. Morgan
Keyword(s):  
Energy Transfer ◽  
Glass Ceramic ◽  
Near Infrared ◽  
Glass Ceramics ◽  
Infrared Emission ◽  
Rare Earth Ions ◽  
Cutting Effect ◽  
Quantum Cutting ◽  
Silicon Based ◽  
Co Doped

ABSTRACTTb and Yb co-doped oxyfluoride glasses were fabricated in a lithium-lanthanum-aluminosilicate matrix by a melt-quench technique. Glass-ceramics were obtained by appropriate heat treatment of the as-prepared glasses. Visible to near-infrared down-conversion quantum cutting was studied for samples with different thermal annealing temperatures and time. Laser light at 488 nm was used to excite Tb3+ ions while Yb3+ ions were excited by energy transfer from the excited Tb3+ ions. Near-infrared emission at 940 – 1020 nm was observed. It has been found that the emission at 940 – 1020 nm increased significantly from the glass-ceramic compared to that of the as-prepared glass. This result suggests that the energy-transfer efficiency increases in glass-ceramics compared to that in glass. A significant portion of rare-earth ions may be incorporated inside LaF3 nanoparticles (NPs) in the glass-ceramic. Because the Yb3+ emission at 940 – 1020 nm is matched well with the band gap of crystalline Si, the quantum cutting effect may have its potential application in silicon-based solar cells.

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
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