|
|
|
|
|
|
Connection of Absorption and Raman Enhancement Characteristics of Different Types of Ag Nanoparticles |
ZHANG Can, ZHANG Jie*, DOU Xin-yi, ZHU Yong |
The Key Laboratory of Optoelectronic Technology & System, Ministry of Education, Chongqing 400044, China |
|
|
Abstract When we use nano-structured materials for surface-enhanced Raman scattering (SERS), we will first test the absorption spectrum because original researchers believe that the reason why nano-structured materials generate SERS is that the absorption of incident light by nano-structured materials causes the localized surface plasmon resonance (LSPR), so we equate the curve of SERS enhancement factor with wavelength to the absorption spectrum curve. In recent years, some scholars believe that the connection between them can be very indirect and can be misleading in many cases. AgNPs are famous for their ability to significantly improve Raman scattering due to their local surface plasmon resonance, so AgNPs are the ideal nanomaterial for the substrate. In order to clarify the specific relationship, we studied the enhancement factor (EF) of surface-enhanced Raman scattering, absorption spectra and spatial electric field distribution of silver nanoparticles (AgNPs) in three different states, experimentally and theoretically. Experimentally, we prepared Ag-sol by chemical reduction method. They were characterized by a transmission electron microscope (TEM), ultraviolet-visible spectrophotometer (UV-Vis) and Raman’s measurements and statistics and calculations of the EF and absorption spectra of silver sols were carried on. Theoretically, we used the simulation software COMSOL Multiphysics to establish different aggregation types of AgNPs models, and simulated the EF curve with wavelength and absorption spectra corresponding to the experiments. The results show that the spatial distribution of surface plasmon resonance plays an important role in absorption and maximum EF value. The resonance absorption peak with a fixed position(first peak position) is mainly affected by the “single particle type” effect, and the absorption peak at the maximum EF (the second peak position) is dominated by the blue-shifted resonance peak caused by the “coupling gap type” effect, the maximum EF value and the position of the second absorption peak will be influenced by the particle gap, polarization angle and other factors. Studies have shown that the absorption spectrum of the AgNps sample is partially related to the maximum EF curve.
|
Received: 2020-05-19
Accepted: 2020-08-30
|
|
Corresponding Authors:
ZHANG Jie
E-mail: zhangjie@cqu.edu.cn
|
|
[1] Kneipp K, Wang Y, Kneipp H, et al. Physical Review Letters, 1997, 78(9): 1667.
[2] Kneipp K, Kneipp H. Applied Spectroscopy, 2006, 60(12): 322.
[3] Gong T, Zhang J, Zhu Y, et al. Carbon, 2016, 102: 245.
[4] Tian Z Q, Ren B, Li J F, et al. Chemical Communications, 2007, 34: 3514.
[5] Ye J, Hutchison J A, Uji-I H, et al. Nanoscale, 2012, 4(5): 1606.
[6] Gong T, Zhu Y, Zhang J, et al. Carbon, 2015, 87: 385.
[7] Camargo P H C, Rycenga M, Au L, et al. Angewandte Chemie International Edition, 2009, 48: 2180.
[8] Niu W, Chua Y A A, Zhang W, et al. Journal of the American Chemical Society, 2015, 137(33): 10460.
[9] Li W, Camargo P H C, Lu X, et al. Nano Letters, 2009, 9(1): 485.
[10] Liu K, Bai Y, Zhang L, et al. Nano Letters, 2016, 16: 3675.
[11] Mohamad G, Banaee, Kenneth B. Crozier. Optics Letters, 2010, 35(5): 760.
[12] Shegai T, Brian B, Miljković V D, et al. ACS Nano, 2011, 5(3): 2036.
[13] Lai H, Ma G, Shang W, et al. Chemosphere, 2019, 223: 465.
[14] Mcfarland A D, Young M A, Dieringer J A, et al. The Journal of Physical Chemistry B, 2005, 109(22): 11279.
[15] Le Ru E C, Galloway C, Etchegoin P G. Physical Chemistry Chemical Physics, 2006, 8(26): 3083. |
[1] |
BAI Xi-lin1, 2, PENG Yue1, 2, ZHANG Xue-dong1, 2, GE Jing1, 2*. Ultrafast Dynamics of CdSe/ZnS Quantum Dots and Quantum
Dot-Acceptor Molecular Complexes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 56-61. |
[2] |
ZHENG Pei-chao, YIN Yi-tong, WANG Jin-mei*, ZHOU Chun-yan, ZHANG Li, ZENG Jin-rui, LÜ Qiang. Study on the Method of Detecting Phosphate Ions in Water Based on
Ultraviolet Absorption Spectrum Combined With SPA-ELM Algorithm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 82-87. |
[3] |
LIU Jia, ZHENG Ya-long, WANG Cheng-bo, YIN Zuo-wei*, PAN Shao-kui. Spectra Characterization of Diaspore-Sapphire From Hotan, Xinjiang[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 176-180. |
[4] |
GU Yi-lu1, 2,PEI Jing-cheng1, 2*,ZHANG Yu-hui1, 2,YIN Xi-yan1, 2,YU Min-da1, 2, LAI Xiao-jing1, 2. Gemological and Spectral Characterization of Yellowish Green Apatite From Mexico[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 181-187. |
[5] |
ZHENG Ni-na1, 2*, XIE Pin-hua1, QIN Min1, DUAN Jun1. Research on the Influence of Lamp Structure of the Combined LED Broadband Light Source on Differential Optical Absorption Spectrum
Retrieval and Its Removing Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3339-3346. |
[6] |
DUAN Ming-xuan1, LI Shi-chun1, 2*, LIU Jia-hui1, WANG Yi1, XIN Wen-hui1, 2, HUA Deng-xin1, 2*, GAO Fei1, 2. Detection of Benzene Concentration by Mid-Infrared Differential
Absorption Lidar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3351-3359. |
[7] |
FANG Zheng, WANG Han-bo. Measurement of Plastic Film Thickness Based on X-Ray Absorption
Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3461-3468. |
[8] |
HUANG Li, MA Rui-jun*, CHEN Yu*, CAI Xiang, YAN Zhen-feng, TANG Hao, LI Yan-fen. Experimental Study on Rapid Detection of Various Organophosphorus Pesticides in Water by UV-Vis Spectroscopy and Parallel Factor Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3452-3460. |
[9] |
WANG Peng1, GAO Yong-bao1*, KOU Shao-lei1, MEN Qian-ni1, ZHANG Min1, HE Tao1, YAO Wei2, GAO Rui1, GUO Wen-di1, LIU Chang-rui1. Multi-Objective Optimization of AAS Conditions for Determination of Gold Element Based on Gray Correlation Degree-RSM Model[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3117-3124. |
[10] |
JIA Yu-ge1, YANG Ming-xing1, 2*, YOU Bo-ya1, YU Ke-ye1. Gemological and Spectroscopic Identification Characteristics of Frozen Jelly-Filled Turquoise and Its Raw Material[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2974-2982. |
[11] |
YANG Xin1, 2, XIA Min1, 2, YE Yin1, 2*, WANG Jing1, 2. Spatiotemporal Distribution Characteristics of Dissolved Organic Matter Spectrum in the Agricultural Watershed of Dianbu River[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2983-2988. |
[12] |
CHANG Zhen1, ZHONG Ming-yu2*, SU Jing-ming1, 2, SI Fu-qi1, WANG Yu3, ZHOU Hai-jin1, DOU Ke1, ZHANG Quan1. Study on the Reconstructing the NO2 Gas Distribution in a Vertical Plane Using MAX-DOAS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2413-2418. |
[13] |
LIU Xian-yu1, YANG Jiu-chang1, 2, TU Cai1, XU Ya-fen1, XU Chang3, CHEN Quan-li2*. Study on Spectral Characteristics of Scheelite From Xuebaoding, Pingwu County, Sichuan Province, China[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2550-2556. |
[14] |
LAI Chun-hong*, ZHANG Zhi-jun, WEN Jing, ZENG Cheng, ZHANG Qi. Research Progress in Long-Range Detection of Surface-Enhanced Raman Scattering Signals[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2325-2332. |
[15] |
TIAN Si-di1, WANG Zhen1, DU Yan-jun2, DING Yan-jun1, PENG Zhi-min1*. High Precision Measurement of Spectroscopic Parameters of CO at 2.3 μm Based on Wavelength Modulation-Direct Absorption Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2246-2251. |
|
|
|
|