White light generation in Tb3+/Eu3+/Dy3+ triply-doped Zn(PO3)2 glass

被引：41

作者：

Meza-Rocha, A. N. ^{[1
]}

Lozada-Morales, R. ^{[2
]}

Speghini, A. ^{[3
,4
,5
]}

Bettinelli, M. ^{[3
,4
]}

Caldino, U. ^{[6
]}

机构：

[1] Benemerita Univ Autonoma Puebla, Fac Ciencias Fis Matemat, Catedrat CONACYT BUAP, Postgrad Fis Aplicada, Ave San Claudio & Ave 18 Sur, Puebla 72570, Pue, Mexico

[2] Benemerita Univ Autonoma Puebla, Fac Ciencias Fis Matemat, Postgrad Fis Aplicada, Ave San Claudio & Ave 18 Sur, Puebla 72570, Pue, Mexico

[3] Univ Verona, Dipartimento Biotecnol, Str Le Grazie 15, I-37314 Verona, Italy

[4] UdR Verona, INSTM, Str Le Grazie 15, I-37314 Verona, Italy

[5] IFAC CNR, Nello Carrara Inst Appl Phys, MDF Lab, I-50019 Sesto Fiorentino, FI, Italy

[6] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, POB 55-534, Mexico City 09340, DF, Mexico

来源：

OPTICAL MATERIALS | 2016年 / 51卷

关键词：

Zn(PO3)(2) glasses; Photoluminescence; White light; Non-radiative energy transfer; Dy3+; Tb3+; Eu3+; ZINC PHOSPHATE-GLASSES; ENERGY-TRANSFER; EMITTING-DIODES; GREENISH-YELLOW; REDDISH-ORANGE; IONS; CE3+; MN2+; SPECTROSCOPY; LASER;

D O I：

10.1016/j.optmat.2015.11.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A spectroscopic investigation of Tb3+/Eu3+/Dy3+ triply-doped Zn(PO3)(2) glass focused on generation of white light is performed through photoluminescence spectra and decay time measurements. The white light emission obtained in the glass phosphor shows excitation wavelength dependent tunable tonality: neutral white (0.385, 0.441) of 4250 K and warm white (0.417, 0.412) of 3429 K, upon 445 and 322 nm excitations, respectively. A quantum yield of 26.1 +/- 1.2% is attained upon Dy3+ excitation at 445 nm. The white luminescence is due mainly to terbium D-5(4) -> F-7(5), dysprosium F-4(9/2) -> H-6(15/2,13/2) and europium D-5(0) -> F-7(2) transitions. It is demonstrated that non-radiative energy transfers Dy3+ to Tb3+ and Eu3+, and Tb3+ to Eu3+, take place in the glass phosphor excited at 445 or 322 nm. Tb3+/Eu3+/Dy3+ triply-doped Zn(PO3)(2) glass, excited by AlGaN (322 nm) or InGaN (445 nm) LEDs, could then be appropriated for solid state lighting technology as neutral or warm white light phosphors. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：128 / 132

页数：5