Near-infrared down-conversion in Mn2+-Yb3+ co-doped Zn2GeO4

被引：108

作者：

Gao, Guojun ^{[1
,2
]}

Wondraczek, Lothar ^{[1
]}

机构：

[1] Univ Jena, Otto Schott Inst, D-07743 Jena, Germany

[2] Univ Erlangen Nurnberg, Dept Mat Sci, D-91058 Erlangen, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 10期

关键词：

FIELD-EMISSION DISPLAYS; SOLAR-CELL EFFICIENCY; SOLVOTHERMAL SYNTHESIS; NIR PHOTOLUMINESCENCE; ENERGY-TRANSFER; UP-CONVERSION; GREEN; LUMINESCENCE; TEMPERATURE; GLASSES;

D O I：

10.1039/c3tc00803g

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on near-infrared (NIR) down-conversion by energy transfer between Mn2+ and Yb3+ in crystalline Zn-1.96 xGeO4+1/2x:Mn0.04Ybx. In the Zn2GeO4 lattice, intrinsic defect transitions and Mn2+ ions act as broadband spectral sensitizers by absorbing UV-Vis (280-500 nm) photons and transferring the absorbed energy to Yb3+ centers in a cooperative down-conversion process. The Yb3+ acceptor is then the source of NIR emission at a wavelength of similar to 1000 nm. Efficient energy transfer is reflected by a sharp decrease in the excited state lifetime and green photoluminescence (PL) from tetrahedrally coordinated Mn2+ with increasing Yb3+ concentration. PL-excitation spectra of NIR luminescence from Yb3+ are identical to those of from Mn-IV(2+). A maximal energy transfer efficiency (ETE) from Mn2+ to Yb3+ and a total theoretical quantum efficiency of 63.8% and 163.8%, respectively, are estimated.

引用

页码：1952 / 1958

页数：7

共 56 条

[1] The effect of Mg incorporation on structural and optical properties of Zn2GeO4: Mn phosphor [J].

Anoop, G. ;

Krishna, K. Mini ;

Jayaraj, M. K. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (01) :J7-J10

[2] Structural and Photoluminescent Properties of Zn2SiO4:Mn2+ Nanoparticles Prepared by a Protected Annealing Process [J].

Bertail, Caroline ;

Maron, Sebastien ;

Buissette, Valerie ;

Le Mercier, Thierry ;

Gacoin, Thierry ;

Boilot, Jean-Pierre .

CHEMISTRY OF MATERIALS, 2011, 23 (11) :2961-2967

[3] Intense red photoluminescence from Mn2+-doped (Na+; Zn2+) sulfophosphate glasses and glass ceramics as LED converters [J].

Da, Ning ;

Peng, Mingying ;

Krolikowski, Sebastian ;

Wondraczek, Lothar .

OPTICS EXPRESS, 2010, 18 (03) :2549-2557

[4] SYNTHESIS AND ATOMIC-STRUCTURE OF PYROCHLORE-TYPE YB2GE2O7 CRYSTALS [J].

DEMYANETS, LN ;

RADAEV, SF ;

MAMIN, BF ;

MAKSIMOV, BA .

JOURNAL OF STRUCTURAL CHEMISTRY, 1988, 29 (03) :485-487

[5] Efficient near-infrared quantum cutting in NaYF4: Ho3+, Yb3+ for solar photovoltaics [J].

Deng, Kaimo ;

Gong, Tao ;

Hu, Lingxun ;

Wei, Xiantao ;

Chen, Yonghu ;

Yin, Min .

OPTICS EXPRESS, 2011, 19 (03) :1749-1754

[6] Efficient visible to infrared quantum cutting through downconversion with the Er3+-Yb3+ couple in Cs3Y2Br9 [J].

Eilers, J. J. ;

Biner, D. ;

van Wijngaarden, J. T. ;

Kraemer, K. ;

Guedel, H.-U. ;

Meijerink, A. .

APPLIED PHYSICS LETTERS, 2010, 96 (15)

[7] Temperature dependence and quantum efficiency of ultrabroad NIR photoluminescence from Ni2+ centers in nanocrystalline Ba-Al titanate glass ceramics [J].

Gao, Guojun ;

Peng, Mingying ;

Wondraczek, Lothar .

OPTICS LETTERS, 2012, 37 (07) :1166-1168

[8] Broadband NIR photoluminescence from Ni2+-doped nanocrystalline Ba-Al titanate glass ceramics [J].

Gao, Guojun ;

Reibstein, Sindy ;

Spiecker, Erdmann ;

Peng, Mingying ;

Wondraczek, Lothar .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (06) :2582-2588

[9]

Gao GJ, 2011, PHYS CHEM GLASSES-B, V52, P59

[10] Broadband UV-to-green photoconversion in V-doped lithium zinc silicate glasses and glass ceramics [J].

Gao, Guojun ;

Meszaros, Robert ;

Peng, Mingying ;

Wondraczek, Lothar .

OPTICS EXPRESS, 2011, 19 (10) :A312-A318

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