贵金属纳米颗粒复合薄膜光学特性理论研究

引用本文: 张素伟, 张波萍, 李顺, 朱立峰, 张雨桥. 贵金属纳米颗粒复合薄膜光学特性理论研究[J]. 无机化学学报, 2015, (11): 2135-2142. doi: 10.11862/CJIC.2015.280 shu

Citation: ZHANG Su-Wei, ZHANG Bo-Ping, LI Shun, ZHU Li-Feng, ZHANG Yu-Qiao. Theoretical Study of the Optical Properties of Noble Metal Nano-Particles Dispersed Composite Films[J]. Chinese Journal of Inorganic Chemistry, 2015, (11): 2135-2142. doi: 10.11862/CJIC.2015.280 shu

贵金属纳米颗粒复合薄膜光学特性理论研究

1.
北京科技大学材料科学与工程学院, 北京 100083

通讯作者: 张波萍 bpzhang@ustb.edu.cn

基金项目:
国家自然科学基金(No.51472026,51272023) (No.51472026,51272023)

高等学校博士学科点专项科研基金(No.20130006110006)资助项目。 (No.20130006110006)

摘要: 采用经典Mie理论模拟计算了Ag、Au和Cu系纳米颗粒复合薄膜的吸收光谱。所有复合薄膜的吸收光谱均在可见光范围内出现表面等离子共振(surfaceplasmonresonance,SPR)吸收峰。Ag、Au和Cu系复合薄膜的SPR吸收峰峰位和峰强与金属介电常数实部(ε_m1)和虚部(ε_m2)及介质折射率(refractiveindex,n_s)之间存在强相关性,相比于ε_m1和ε_m2,n_s的增大主导SPR吸收峰向长波方向移动且强度增强。通过改变金属和介质种类可以调节Ag、Au和Cu系复合薄膜的SPR吸收峰峰位和峰强,从而调节其光吸收特性。根据n_s可以推测出金属纳米颗粒复合薄膜在可见光范围内的SPR吸收峰峰位。理论模拟吸收光谱与前人实验结果吻合,SPR吸收峰峰位的理论值与文献实验值接近。

关键词:

Mie理论;金属纳米颗粒复合薄膜;表面等离子共振;介质折射率

English

Theoretical Study of the Optical Properties of Noble Metal Nano-Particles Dispersed Composite Films

1.
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Corresponding author: 张波萍 bpzhang@ustb.edu.cn

Received Date: 03 April 2015
Fund Project:
国家自然科学基金(No.51472026,51272023)

高等学校博士学科点专项科研基金(No.20130006110006)资助项目。

Abstract: The optical absorption spectra of the nano-composite films dispersed by Ag, Au and Cu nano-particles were simulated by the classical Mie theory. It was found that the optical absorption spectra exhibit surface plasmon resonance (SPR) absorption peaks in visible region. The positions and intensities of the SPR absorption peaks are strongly affected by the real part (ε_m1) and imaginary part (ε_m2) of dielectric constant of metal and refractive index (n_s) of dielectric. The SPRabsorption position in visible region of the composite film is strongly dependent on n_s rather than ε_m1 and ε_m2. The simulated optical absorption spectra of the composite films dispersed by Ag, Au and Cu by Mie theory in this study are in good agreement with the reported experiment results, especially showing a close SPR peak positions to each other.

Key words:

Mie theory;nano-composite film;surface plasmon resonance;refractive index

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

贵金属纳米颗粒复合薄膜光学特性理论研究

通讯作者: 张波萍 bpzhang@ustb.edu.cn

English

Theoretical Study of the Optical Properties of Noble Metal Nano-Particles Dispersed Composite Films

Corresponding author: 张波萍 bpzhang@ustb.edu.cn

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

贵金属纳米颗粒复合薄膜光学特性理论研究

通讯作者: 张波萍 bpzhang@ustb.edu.cn

English

Theoretical Study of the Optical Properties of Noble Metal Nano-Particles Dispersed Composite Films

Corresponding author: 张波萍 bpzhang@ustb.edu.cn

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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