Willemite photoluminescence in Zn‐implanted silica glasses

Willemite photoluminescence in Zn‐implanted silica glasses
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DOI：
10.1002/pssc.201510099
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发表时间：
2015-09
期刊：
Physica Status Solidi (c)
影响因子：
--
通讯作者：
A. Zatsepin;E. Buntov;V. Kortov;N. Gavrilov;H. Fitting
A. Zatsepin;E. Buntov;V. Kortov;N. Gavrilov;H. Fitting
中科院分区：
其他
文献类型：
--
作者：
A. Zatsepin;E. Buntov;V. Kortov;N. Gavrilov;H. Fitting

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研究了离子注入法在SiO2中形成的α-Zn 2SiO 4纳米粒子的光致发光特性。X射线衍射、光学和光致发光（PL）光谱证实了硅锌矿相Zn 2SiO 4在SiO2基质中的形成。观察到的特征2.4 eV PL带类似于经典的Zn 2SiO 4：Mn磷光体的性质，虽然没有锰被引入到样品中。PL激发光谱表明硅锌矿和二氧化硅带态的贡献，从而提出相间能量转移机制。热猝灭和观察到的发光寿命提供了线索，弄清楚发射中心的性质。（© 2015 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆）
The photoluminescence properties of α-Zn2SiO4 nanoparticles formed in the SiO2 by means of ion implantation and subsequent 900 °C, 1 hour annealing in air atmosphere. Both X-ray diffraction, optical and photoluminescence (PL) spectra confirm the formation of willemite phase Zn2SiO4 in SiO2 matrices. The characteristic 2.4 eV PL band observed resembles the properties of classical Zn2SiO4:Mn phosphor, though no manganese were introduced into the samples. PL excitation spectra demonstrate the contribution of willemite and silica band states, thus suggesting interphase energy transfer mechanism. Thermal quenching and lifetimes of the luminescence observed provide the clues to figure out the nature of emission centres. (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)