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Ag@SiO2纳米核壳结构对铒碲发光玻璃的发光的增强机制

陈晓波 李崧 赵国营 刘洪珍 郭敬华 马瑜 王克志 耿珠峰

陈晓波, 李崧, 赵国营, 刘洪珍, 郭敬华, 马瑜, 王克志, 耿珠峰. Ag@SiO2纳米核壳结构对铒碲发光玻璃的发光的增强机制[J]. 中国光学. doi: 10.37188/CO.2021-0142
引用本文: 陈晓波, 李崧, 赵国营, 刘洪珍, 郭敬华, 马瑜, 王克志, 耿珠峰. Ag@SiO2纳米核壳结构对铒碲发光玻璃的发光的增强机制[J]. 中国光学. doi: 10.37188/CO.2021-0142
CHEN Xiao-bo, LI Song, ZHAO Guo-ying, LIU Hong-Zhen, GUO Jing-hua, MA Yu, WANG Ke-zhi, GENG Zhu-feng. Luminescence enhancement mechanism of Er3+ ion by Ag@SiO2 core-shell nanostructure in Tellurite glass[J]. Chinese Optics. doi: 10.37188/CO.2021-0142
Citation: CHEN Xiao-bo, LI Song, ZHAO Guo-ying, LIU Hong-Zhen, GUO Jing-hua, MA Yu, WANG Ke-zhi, GENG Zhu-feng. Luminescence enhancement mechanism of Er3+ ion by Ag@SiO2 core-shell nanostructure in Tellurite glass[J]. Chinese Optics. doi: 10.37188/CO.2021-0142

Ag@SiO2纳米核壳结构对铒碲发光玻璃的发光的增强机制

doi: 10.37188/CO.2021-0142
基金项目: 国家自然科学基金项目(No. 51972020 与 No. 51472028); 中央高校基本科研业务费专项资金(No. 2017TZ01)
详细信息
    作者简介:

    陈晓波(1963—),男,博士,教授,博士生导师,福建省福州籍贯,1992年1月获北京大学博士学位,主要研究方向为发光学与光学等方面的工作。E-mail: chen78xb@sina.com;13521815726

    李 崧(1973—),男,博士,教授级高工,硕士生导师,河南人,1998年北京师范大学物理系博士毕业,主要研究方向为计算物理科学。E-mail: kjlis@bnu.edu.cn; 13801080636

    赵国营(1986—),男,博士,副教授,硕士生导师,山东人,2013年博士毕业于中国科学院上海光学精密机械研究所,主要研究方向为光电功能材料。E-mail: zhaogy135@sit.edu.cn, 13918795459

    刘洪珍(1997—),女,硕士,山东省滨州人,北京科技大学硕士,在读,主要研究方向为光功能材料与器件等方面的工作。E-mail: ld19800315561@163.com; Telephone: 19800315561

    郭敬华(1977—),女,博士,高工,辽宁人,2004年在北京师范大学获博士学位。主要研究方向材料分析研究。E-mail: gjh@bnu.edu.cn; Telephone: 13811562941

    马 瑜(1992—),女,硕士,山西省吕梁人,上海应用技术大学材料科学与工程学院硕士,在读,主要研究方向光电材料制作。E-mail: 1569679980@qq.com;Telephone: 15935863279

    王克志(1962—),男,博士,教授,博士生导师,黑龙江省肇源县人,1993年9月获北京大学博士学位,主要研究方向为光电金属配合物方面的工作。E-mail: kzwang@bnu.edu.cn;13611348281

    耿珠峰(1985—),女,博士,工程师,吉林省公主岭人,2020年6月获北京师范大学博士学位,主要研究方向为核磁共振技术。E-mail:gengzhufeng@bnu.edu.cn; Telephone: 13466720193

  • 中图分类号: O433.1

Luminescence enhancement mechanism of Er3+ ion by Ag@SiO2 core-shell nanostructure in Tellurite glass

Funds: Project supported by the National Natural Science Foundation of China (No. 51972020 and No. 51472028);
More Information
  • 摘要: 我们首次把预先制备好的Ag@SiO2纳米核壳结构成功的引进到碲化物发光玻璃70TeO2-25ZnO-5La2O3-0.5Er2O3体内,我们发现(A) Ag(1.6×10−6 mol /L)@SiO2(40 nm) @Er3+(0.5%):铒碲发光玻璃相对于样品(B) Er3+(0.5%):铒碲发光玻璃的可见光与红外光的激发光谱强度的最大增强依次为149.0%与161.5%。可见光与红外光的发光光谱强度则依次最大增强了155.2%与151.6%。还发现样品(A)相对于样品(B)的寿命显著变长。由于Ag@SiO2的表面等离子体吸收峰恰好位于546.0 nm,它与铒离子的发光峰546.0 nm完全共振了,因此,Ag@SiO2对铒碲发光玻璃的发光的共振增强作用显著。该论文所研究的Ag@SiO2纳米核壳结构为预先制作好的,由于银的纳米核壳结构与玻璃的制作具有分步实现的优点:它既能够成功的控制Ag@SiO2的尺寸,更有Ag@SiO2@Er:铒碲发光玻璃的制作过程可操作性强的优点,它同时也具有价格更加便宜了的长处,况且,其也既能够保证银不被氧化,更加能够尽量周到的控制稀土离子发光中心与银的表面等离子体之间的距离,因此能够成功的减少背向能量反传递,上述优点促成了Ag@SiO2纳米核壳结构表面等离子体有效的加强了Ag@SiO2@Er3+:铒碲发光玻璃的常规光致发光强度。上述这些结果对增强稀土发光材料的发光强度促进它具有更加广泛的应用前景有着重要的意义。
  • 图  1  1.85×10−3 mol/L的Ag@SiO2水溶液的样品透射电镜形貌图,电镜测量的加速工作电压是200 kV

    Figure  1.  TEM morphology of the 1.85×10−3 mol/L Ag@SiO2 aqueous solution. The accelerating voltage measured by electron microscope is 200 kV

    图  2  1800 nm到270 nm波长范围的(A) Ag(1.6×10−6 mol /L) @SiO2(40 nm)@Er3+(0.5%): 铒碲发光玻璃样品(A蓝线)与(B) Er3+(0.5%): 铒碲发光玻璃样品(B红线)的吸收

    Figure  2.  The absorption of (A) Ag(1.6×10−6 mol/L)@SiO2(40 nm) @Er3+(0.5%):TeZnLa glass (A blue line) and (B) Er(0.5%):TeZnLa glass (B red line) when measured from 1800 nm to 270 nm

    图  3  800 nm到290 nm波长范围的Ag(1.50×10−3 mol/L) @SiO2(40 nm)水溶液样品的吸收

    Figure  3.  The absorption of Ag(1.50×10−3 mol/L)@SiO2(40 nm) water sample when measured from 800 nm to 290 nm

    图  4  Er3+Ag0:TeZnLa样品的能级结构与表面等离子体增强发光过程的示意图。蓝线、红线与绿线依次代表吸收、发光与共振散射增强过程。

    Figure  4.  Schematic diagram of the energy level structure and luminescence enhancement process induced by surface Plasmon of Er3+Ag0:TeZnLa sample. The blue line, red line and green line represent the absorption, luminescence and resonant scatter enhancement process respectively.

    图  5  用550 nm为接收荧光波长测量所获的(A) Ag(1.6×10−6 mol /L)@SiO2(40 nm)@Er3+(0.5%):铒碲发光玻璃样品(A蓝线)与(B) Er(0.5%):铒碲发光玻璃样品(B红线)的280 nm到538 nm波长范围的可见激发光谱。

    Figure  5.  The visible excitation spectra of (A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):TeZnLa glass (A blue line) and (B) Er(0.5%):TeZnLa glass (B red line) from 280 nm to 538 nm when monitored at 550 nm.

    图  6  用1531 nm为接收荧光波长测量所获的(A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):铒碲发光玻璃样品(A 蓝线)与(B) Er(0.5%):铒碲发光玻璃样品(B 红线)的280 nm到850 nm波长范围的红外激发光谱。

    Figure  6.  The infrared excitation spectra of (A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):TeZnLa glass (A blue line) and (B) Er(0.5%):TeZnLa glass (B red line) from 280 nm to 850 nm when monitored at 1531 nm.

    图  7  378.0 nm光激发(A) Ag(1.6×10−6 mol /L)@SiO2(40 nm) @Er3+(0.5%):铒碲发光玻璃样品(A 蓝线)与(B) Er3+(0.5%):铒碲发光玻璃样品(B 红线)的395 nm到718 nm波长范围的可见发光光谱。

    Figure  7.  The visible luminescence spectra of (A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):TeZnLa glass (A blue line) and (B) Er(0.5%):TeZnLa sample (B red line) from 395 nm to 718 nm when excited by 378.0 nm.

    图  8  378.0 nm光激发(A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):铒碲发光玻璃样品(A 蓝线)与(B) Er3+(0.5%):铒碲发光玻璃样品(B 红线)的918 nm到1680 nm波长范围的红外发光光谱。

    Figure  8.  The infrared luminescence spectra of (A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):TeZnLa glass (A blue line) and (B) Er(0.5%):TeZnLa glass (B red line) from 918 nm to 1680 nm when excited by 378.0 nm.

    图  9  378.0 nm光激发(A) Ag(1.6×10−6 mol /L)@SiO2(40 nm)@Er3+(0.5%):铒碲发光玻璃样品(A 蓝点)与(B) Er3+(0.5%):铒碲发光玻璃样品(B 红点)的550.0 nm发光的荧光寿命。

    Figure  9.  The fluorescence lifetime of (A) Ag(1.6×10−6 mol /L)@SiO2(40 nm)@Er3+(0.5%):TeZnLa glass (A blue dot) and (B) Er(0.5%):TeZnLa glass (B red dot) at 550 nm luminescent wavelength were measured using a 378.0 nm pulsed xenon lamp as the pump source.

    表  1  (A) Ag(1.6×10−6 mol /L)@SiO2(40 nm)@Er3+(0.5%):铒碲发光玻璃样品(序号A)与(B) Er3+(0.5%):铒碲发光玻璃样品(序号B)的可见光与红外光的发光强度与增强倍数。

    Table  1.   The luminescence intensity and the enhancement factor of the visible and infrared luminescence of (A) Ag(1.6×10−6 mol/L)@SiO2(40 nm)@Er3+(0.5%):TeZnLa glass (number A) and (B) Er(0.5%):TeZnLa glass (number B).

    激发波长发光波长样品序号发光强度增强倍数
    378.0 nm546.0 nmA2.261×105150.6%
    378.0 nm546.0 nmB1.501×105
    520.5 nm546.0 nmA2.090×105151.9%
    520.5 nm546.0 nmB1.376×105
    406.5 nm546.0 nmA0.222×105155.2%
    406.5 nm546.0 nmB0.143×105
    378.0 nm1531.0 nmA5.822×106150.1%
    378.0 nm1531.0 nmB3.880×106
    520.5 nm1531.0 nmA5.149×106151.6%
    520.5 nm1531.0 nmB3.396×106
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