Effectively realizing broadband spectral conversion of UV/visible to near-infrared emission in (Na,K)Mg(La,Gd)TeO6:Mn4+,Nd3+,Yb3+ materials for c-Si solar cells via efficient energy transfer

2018 ◽  
Vol 6 (27) ◽  
pp. 7302-7310 ◽  
Author(s):  
Kai Li ◽  
Rik Van Deun
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Near Infrared ◽  
Infrared Emission ◽  
Efficient Energy Transfer ◽  
Efficient Energy ◽  
Si Solar Cells ◽  
Uv Visible ◽  
Near Infrared Emission ◽  
Spectral Conversion

A series of (Na,K)Mg(La,Gd)TeO6:Mn4+,Nd3+,Yb3+ materials were prepared and the broadband spectral conversion of UV/visible to near-infrared emission for c-Si solar cells was effectively realized via efficient energy transfer processes.

Near-infrared emission of CaAl6Ga6O19:Cr3+,Ln3+ (Ln = Yb, Nd, and Er) via energy transfer for c-Si solar cells

2020 ◽  
Vol 49 (25) ◽  
pp. 8791-8798 ◽  
Author(s):  
Li Kong ◽  
Yingying Liu ◽  
Langping Dong ◽  
Liang Zhang ◽  
Lu Qiao ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Near Infrared ◽  
Infrared Emission ◽  
Si Solar Cells ◽  
Uv Visible ◽  
Near Infrared Emission ◽  
Spectral Conversion

In this study, we have reported broadband spectral conversion of UV/visible to near-infrared emission in the CaAl6Ga6O19:Cr3+,Ln3+ (Ln = Yb, Nd, and Er) materials for the c-Si solar cells via energy transfer.

scholarly journals Intense near-infrared emission from ZnO-LiYbO_2 hybrid phosphors through efficient energy transfer from ZnO to Yb^3+

2010 ◽  
Vol 18 (2) ◽  
pp. 639 ◽  
Author(s):  
Song Ye ◽  
Nan Jiang ◽  
Feng He ◽  
Xiaofeng Liu ◽  
Bin Zhu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Infrared Emission ◽  
Efficient Energy Transfer ◽  
Efficient Energy ◽  
Near Infrared Emission

Near Infrared Quantum Cutting of Tb3+–Yb3+ Co-Doped CeF3 Nanophosphors

2016 ◽  
Vol 16 (4) ◽  
pp. 3577-3582
Author(s):  
Sun Xiao ◽  
Hu Xiao-Yun ◽  
Hou Wen-Qian ◽  
Fan Jun ◽  
Miao Hui ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Near Infrared ◽  
Emission Spectra ◽  
Infrared Emission ◽  
Emission Area ◽  
Energy Transfers ◽  
Quantum Cutting ◽  
Near Infrared Emission ◽  
Co Doped

In this paper, Tb3+–Yb3+ Co-doped CeF3 nanophosphors were synthesized using the microwave-assisted heating hydrothermal method (M–H). The excitation and emission spectra of the samples at room temperature show that the samples absorb ultraviolet light from 250 nm to 280 nm, and emit light at 300 nm. This corresponds to the transitions from 5D to 4F of Ce3+, 480 nm, 540 nm, 583 nm, 620 nm which correspond to the transitions from 5D4 to 7F6,5,4,3 of Tb3+, 973 nm which corresponds to the transitions from 2F5/2–2F7/2 of Yb3+. In the emission spectra, it is clear that the emission intensity of Ce3+ and Tb3+ decreases, and Yb3+ increases with increasing Yb3+. This suggests that energy transfer from Ce3+ to Yb3+, and Ce3+ to Tb3+ to Yb3+ may occur. In the near infrared emission area, it is noted that a distinct emission centered at 973 nm was observed under 260 nm excitation. This is due to transitions among the different Stark levels of 2FJ(J=5/2, 7/2) Yb3+ ions. This also suggests an energy transfer from Ce3+ ions to Tb3+ and then to Yb3+. The energy transfers from Tb3+–Yb3+ Co-doped CeF3 nanophosphors, which lead to intense NIR emissions at 900–1050 nm, match the energy of Si band gaps of Si-based solar cells. Therefore, these kinds of materials are promising candidates for applications that require modifying if solar spectrums and enhancement of conversion efficiency of Si-based solar cells.

scholarly journals Enhanced photovoltaic performance of ultrathin Si solar cells via semiconductor nanocrystal sensitization: energy transfer vs. optical coupling effects

Nanoscale ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 5873-5883 ◽  
Author(s):  
Son Hoang ◽  
Ahsan Ashraf ◽  
Matthew D. Eisaman ◽  
Dmytro Nykypanchuk ◽  
Chang-Yong Nam
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Semiconductor Nanocrystals ◽  
Photovoltaic Performance ◽  
Optical Coupling ◽  
Coupling Effects ◽  
Efficient Energy Transfer ◽  
Semiconductor Nanocrystal ◽  
Efficient Energy ◽  
Si Solar Cells

Efficient energy transfer from semiconductor nanocrystals, combined with optical coupling effects, enhances the efficiency of ultrathin Si solar cells by up to 45 percent.

Conversion of broadband UV-visible light to near infrared emission by Ca14Zn6Al10O35: Mn4+, Nd3+/Yb3+

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 7544-7552 ◽  
Author(s):  
Xuejun Gao ◽  
Wenbin Xia ◽  
Tiejin Chen ◽  
Xiaoliang Yang ◽  
Xiangliang Jin ◽  
...  
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
Sol Gel ◽  
Infrared Emission ◽  
Gel Method ◽  
Sol Gel Method ◽  
Conversion Materials ◽  
Uv Visible ◽  
Near Infrared Emission ◽  
Spectral Conversion

Efficient Ca14Zn6Al10O35: Mn4+, Nd3+/Yb3+ spectral conversion materials have been prepared by a sol–gel method.

Sensitizing effect of Yb3+ on near-infrared fluorescence emission of Cr4+-doped calcium aluminate glasses

2000 ◽  
Vol 15 (2) ◽  
pp. 278-281 ◽  
Author(s):  
Yong Gyu Choi ◽  
Kyong Hon Kim ◽  
Yong Seop Han ◽  
Jong Heo
Keyword(s):  
Energy Transfer ◽  
Calcium Aluminate ◽  
Near Infrared ◽  
Fluorescence Emission ◽  
Dipole Interaction ◽  
Energy Transfer Mechanism ◽  
Efficient Energy Transfer ◽  
Efficient Energy ◽  
Sensitizing Effect ◽  
Decay Behavior

We have demonstrated that an efficient energy transfer takes place from Yb3+ to Cr4+ in calcium aluminate glasses. Yb3+ improves excitation efficiency at around 980 nm, enhancing emission intensity of Cr4+ fluorescence at 1.2–1.6 μm. Nonradiative energy transfer via electric dipole–dipole interaction between ytterbium and chromium ions was found to be dominant over radiative Yb3+ → Cr4+ energy transfer. A diffusionlimited energy transfer mechanism well explains the decay behavior of Yb3+/Cr4+- codoped glasses. This codoping scheme may be applicable to other Cr4+-containing crystals and glasses.

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