Cooperative Energy Transfer Up-Conversion and Quantum Cutting Down-Conversion in Yb3+:TbF3 Nanocrystals Embedded Glass Ceramics

2009 ◽  
Vol 113 (16) ◽  
pp. 6406-6410 ◽  
Author(s):  
Daqin Chen ◽  
Yunlong Yu ◽  
Yuansheng Wang ◽  
Ping Huang ◽  
Fangyi Weng
Keyword(s):  
Energy Transfer ◽  
Glass Ceramics ◽  
Quantum Cutting ◽  
Down Conversion ◽  
Cooperative Energy

Cooperative Energy Transfer of Er-Gd-Tb System in Tb3+, Er3+ Co-Doped K2GdZr(PO4)3 as a Potential Visible Quantum Cutting Phosphor

2014 ◽  
Vol 936 ◽  
pp. 585-590 ◽  
Author(s):  
Liang Feng Niu ◽  
Wei Liang ◽  
Chang Zeng Wu ◽  
Yu Hua Wang
Keyword(s):  
Energy Transfer ◽  
Ultra Violet ◽  
Solid State Reaction Method ◽  
Practical Application ◽  
Energy Transfers ◽  
Quantum Cutting ◽  
Down Conversion ◽  
Vacuum Ultra Violet ◽  
Co Doped ◽  
Cooperative Energy

Tb3+, Er3+co-doped K2GdZr (PO4)3samples were prepared by solid-state reaction method and their photoluminescence (PL) properties were investigated in ultra-violet (UV) and vacuum ultra-violet (VUV) region. The results indicate that the energy transfers from Er3+to Gd3+and from Gd3+to Tb3+required for occurring of visible quantum cutting through down-conversion are efficient. In this cooperative energy transfer process, Gd3+is used as an intermediate of energy transfer between Er3+and Tb3+. The optimal quantum efficiency (QE) of this co-doped system K2GdZr (PO4)3: Er3+, Tb3+phosphor reached to 110%, suggesting a potential visible quantum cutting phosphor in practical application.

Quantum Cutting down Conversion by Cooperative Energy Transfer from Tb3+ to Yb3+ in CeF3 Nanophosphors

2013 ◽  
Vol 860-863 ◽  
pp. 124-127
Author(s):  
Mayuri Gandhi ◽  
Nayan Agrawal ◽  
Harshita Bhatia
Keyword(s):  
Energy Transfer ◽  
Energy Transfer Process ◽  
Fast Response ◽  
Luminescence Spectra ◽  
High Radiation ◽  
Cerium Fluoride ◽  
Quantum Cutting ◽  
Co Precipitation ◽  
Down Conversion ◽  
Cooperative Energy

In the present work, Cerium Fluoride (CeF3) was selected as the host material because of its High density, fast response and high radiation resistance, efficient absorption and energy transfer by host (to activator). Rare earths have been used to show the process of Quantum Cutting (QC) via energy transfer process between Tb3+ and Yb3+ incorporated in CeF3. For the synthesis of CeF3 nanoparticles codoped with Tb3+ and Yb3+ ion, co-precipitation route was employed. Different doping concentrations were prepared to study the changes that take place in the luminescence spectra of the composition. Thus, concentration dependent study of the fluorescence of CeF3: Tb3+, Yb3+ was carried out. These materials have great applications in solar cell devices as quantum efficiencies up to 200 % can be achieved.

CaMoO4:x%Yb3+: A Novel Near-Infrared Quantum-Cutting Phosphors via Cooperative Energy Transfer

2011 ◽  
Vol 11 (11) ◽  
pp. 9543-9549 ◽  
Author(s):  
Xueqin Cao ◽  
Li Li ◽  
Xiantao Wei ◽  
Yonghu Chen ◽  
Weiping Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Quantum Cutting ◽  
Cooperative Energy

Near-infrared down-conversion in Er3+–Yb3+ co-doped transparent nanostructured glass ceramics for crystalline silicon solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 4085-4089 ◽  
Author(s):  
Yuping Tai ◽  
Hanying Wang ◽  
Hui Wang ◽  
Jintao Bai
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Crystalline Silicon ◽  
Glass Ceramics ◽  
Silicon Solar Cells ◽  
Transparent Glass ◽  
Crystalline Silicon Solar Cells ◽  
Down Conversion ◽  
Visible Photon ◽  
Co Doped

A two-step energy transfer was achieved in Er3+–Yb3+ co-doped transparent glass ceramics containing CaF2 nanocrystals, which involved down-conversion of an absorbed visible photon to two emitted near-infrared photons.

Downconversion for Solar Cells in Sr3Gd(PO4)3:Tb, Yb Phosphors

2012 ◽  
Vol 502 ◽  
pp. 136-139 ◽  
Author(s):  
Jia Yue Sun ◽  
Yi Ning Sun ◽  
Ji Cheng Zhu ◽  
Jun Hui Zeng ◽  
Hai Yan Du
Keyword(s):  
Energy Transfer ◽  
Solar Cell ◽  
Near Infrared ◽  
Emission Spectra ◽  
Fluorescence Decay ◽  
Quantum Cutting ◽  
Silicon Based ◽  
Visible Photon ◽  
Co Doped ◽  
Cooperative Energy

An efficient near-infrared (NIR) quantum cutting (QC) Tb3+ and Yb3+ co-doped phosphor Sr3Gd(PO4)3 has been synthesized by conventional high temperature solid technique. Upon excitation of Tb3+ with a visible photon at 485 nm, two NIR photons could be emitted by Yb3+ through cooperative energy transfer (CTE) from Tb3+ to two Yb3+ ions. Excitation and emission spectra as well as fluorescence decay measurements have been carried out to examine the occurrence of cooperative energy transfer (CET ) from Tb3+ to Yb3+ ions. The result indicates Tb3+ and Yb3+ co-doped Sr3Gd(PO4)3 is potentially used as down-converter layer in silicon-based solar cell.

Cooperative Energy Transfer Up-/Down-Conversion Luminescence in Tb3+/Yb3+ Co-Doped Cubic Na5Lu9F32 Single Crystals by Gd3+ Co-Doping

2017 ◽  
Vol 17 (6) ◽  
pp. 3163-3169 ◽  
Author(s):  
Shinan He ◽  
Haiping Xia ◽  
Qingyang Tang ◽  
Qiguo Sheng ◽  
Jianli Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Single Crystals ◽  
Co Doping ◽  
Down Conversion ◽  
Co Doped ◽  
Cooperative Energy

Quantum cutting downconversion by cooperative energy transfer from Bi 3+ to Yb 3+ in Y 2 O 3 phosphor

2010 ◽  
Vol 19 (7) ◽  
pp. 077804 ◽  
Author(s):  
Wei Xian-Tao ◽  
Zhao Jiang-Bo ◽  
Chen Yong-Hu ◽  
Yin Min ◽  
Li Yong
Keyword(s):  
Energy Transfer ◽  
Quantum Cutting ◽  
Cooperative Energy
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