银纳米晶掺杂玻璃基片对Er3+/Yb3+共掺碲酸盐薄膜的荧光增强及其数值模拟

doi:10.3724/SP.J.1077.2011.01215

无机材料学报 ›› 2011, Vol. 26 ›› Issue (11): 1215-1220.DOI: 10.3724/SP.J.1077.2011.01215

银纳米晶掺杂玻璃基片对Er³⁺/Yb³⁺共掺碲酸盐薄膜的荧光增强及其数值模拟

孙天拓¹, 林健^1,2, 魏恒勇¹, 冯昭彬¹

(同济大学1. 材料科学与工程学院; 2. 先进土木工程材料教育部重点实验室, 上海 200092)

收稿日期:2010-12-26 修回日期:2011-03-14 出版日期:2011-11-20 网络出版日期:2011-11-11
作者简介:孙天拓(1986-), 男, 硕士研究生. E-mail: sttstudy@126.com
基金资助:
上海市科学技术委员会纳米专项基金(0852nm06500)

Luminescence Enhancement of Er³⁺/Yb³⁺ Co-doped Tellurite Films on Ag-nanoparticles-doped Glass Substrates and Numerical Simulating

SUN Tian-Tuo¹, LIN Jian^1,2, WEI Heng-Yong¹, FENG Zhao-Bin¹

(1. College of Materials Science and Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 200092, China)

Received:2010-12-26 Revised:2011-03-14 Published:2011-11-20 Online:2011-11-11
Supported by:
Nano-tech Foundation of Shanghai Science and Technology Committee (0852nm06500)

摘要/Abstract

摘要： 采用电场辅助热扩散工艺制备了银纳米晶掺杂玻璃基片, 用非水解溶胶?凝胶法在基片上制备了Er³⁺/Yb³⁺共掺碲酸盐薄膜, 研究结果表明, 玻璃基片中的银纳米颗粒对Er³⁺/Yb³⁺共掺碲酸盐薄膜具有明显的荧光增强效果. 利用菲克第一、第二定律、欧姆定律、泊松方程对电场辅助热扩散过程进行了数值模拟, 计算了玻璃内银的浓度分布. 结果表明: 玻璃内银纳米颗粒的总量越大、近玻璃表面银纳米颗粒的浓度和粒度越大、银耗尽层的厚度越小, 荧光增强效果越好. 此外, 不仅近玻璃表面的银纳米颗粒可以产生荧光增强效应, 而且远离表面的银纳米颗粒也有荧光增强效应.

关键词: 银纳米晶, 碲酸盐薄膜, 电场辅助热扩散, 表面等离子体增强荧光, 数值模拟

Abstract: The glass substrates doped with Ag nanoparticles (NPs) were fabricated by the field-assisted thermal diffusion (FATD) process. The Er³⁺/Yb³⁺ co-doped tellurite thin films were deposited on these substrates via nonhydrolytic Sol-Gel method. It was found that the luminescence of the thin film was significantly enhanced by the Ag NPs embedded in the glass substrate. The distribution of Ag in the substrate after FATD process was calculated by numerical simulating on base of Fick’s first and second law, Ohm’s law and Poisson equation. The enhancement factor increased with the increase of concentration and diameter of Ag NPs near the glass surface. When the total amount of NPs decreased and the thickness of space-charge layer increased, the enhancement effect became weak. In addition, besides the Ag NPs near the glass surface the Ag NPs far from the glass surface could also contribute to the luminescence enhancement.

Key words: silver nanoparticles, tellurite films, field-assisted thermal diffusion, surface-plasmon-enhanced luminescence, numerical simulating

中图分类号:

TQ174

孙天拓, 林健, 魏恒勇, 冯昭彬. 银纳米晶掺杂玻璃基片对Er³⁺/Yb³⁺共掺碲酸盐薄膜的荧光增强及其数值模拟[J]. 无机材料学报, 2011, 26(11): 1215-1220.

SUN Tian-Tuo, LIN Jian, WEI Heng-Yong, FENG Zhao-Bin. Luminescence Enhancement of Er³⁺/Yb³⁺ Co-doped Tellurite Films on Ag-nanoparticles-doped Glass Substrates and Numerical Simulating[J]. Journal of Inorganic Materials, 2011, 26(11): 1215-1220.

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银纳米晶掺杂玻璃基片对Er³⁺/Yb³⁺共掺碲酸盐薄膜的荧光增强及其数值模拟

Luminescence Enhancement of Er³⁺/Yb³⁺ Co-doped Tellurite Films on Ag-nanoparticles-doped Glass Substrates and Numerical Simulating

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