| Precise measurement of gold nanorods by using depolarized dynamic light scattering apparatus |
| |
| 作者姓名： | 崔震 黄鹭 孙淼 高思田 蔡晋辉 李伟 施玉书 李琪 |
| |
| 作者单位： | China Jiliang University, Hangzhou 310018, China；National Institute of Metrology (NIM), Beijing 100029, China,National Institute of Metrology (NIM), Beijing 100029, China,National Institute of Metrology (NIM), Beijing 100029, China,National Institute of Metrology (NIM), Beijing 100029, China,China Jiliang University, Hangzhou 310018, China,National Institute of Metrology (NIM), Beijing 100029, China,National Institute of Metrology (NIM), Beijing 100029, China and National Institute of Metrology (NIM), Beijing 100029, China |
| |
| 基金项目： | This work has been supported by the National Natural Science Foundation of China(No.51805505);the Key R&D Projects of Science and Technology(No.2016YFA0200901);the Basic Science Research Operating Fund of NIM(No.AKY 1817)。 |
| |
| 摘 要： | A precise and noninvasive method for the size and shape measurement of gold nanorods(GNRs) has been proposed based on depolarized dynamic light scattering(DDLS). A home-made DDLS apparatus has been established. By applying depolarized optical path with precise alignment method, the signal-to-noise ratio(SNR) of this apparatus is highly improved. GNRs with three different diameter and length has been precisely measured by using DDLS method as well as scanning electron microscopy(SEM). The thickness of adsorption layer of cetyltrimethylammonium bromide(CTAB) in solution has been taken into consideration. Results show that size measurement of GNRs by using DDLS method agrees very well with that by using SEM. In addition, it is shown that the extinction spectroscopy strongly limited the application of DDLS method by affecting the effective scattering light intensity. Proper laser wavelength should be chosen before the application of this method.
|
| 关 键 词： | apparatus SCATTERING POLARIZED |
| 收稿时间： | 2020/9/9 0:00:00 |
| 修稿时间： | 2020/10/26 0:00:00 |
Precise measurement of gold nanorods by using depolarized dynamic light scattering apparatus |
| |
| CUI Zhen,HUANG Lu,SUN Miao,GAO Si-tian,CAI Jin-hui,LI Wei,SHI Yu-shu and LI Qi.Precise measurement of gold nanorods by using depolarized dynamic light scattering apparatus[J].Opto-electronics Letters,2021,17(3):170-175. |
| |
| Authors: | CUI Zhen HUANG Lu SUN Miao GAO Si-tian CAI Jin-hui LI Wei SHI Yu-shu and LI Qi |
| |
| Affiliation: | (China Jiliang University,Hangzhou 310018,China;National Institute of Metrology(NIM),Beijing 100029,China) |
| |
| Abstract: | A precise and noninvasive method for the size and shape measurement of gold nanorods (GNRs) has been proposed based on depolarized dynamic light scattering (DDLS). A home-made DDLS apparatus has been established. By applying depolarized optical path with precise alignment method, the signal-to-noise ratio (SNR) of this apparatus is highly improved. GNRs with three different diameter and length has been precisely measured by using DDLS method as well as scanning electron microscopy (SEM). The thickness of adsorption layer of cetyltrimethylammonium bromide (CTAB) in solution has been taken into consideration. Results show that size measurement of GNRs by using DDLS method agrees very well with that by using SEM. In addition, it is shown that the extinction spectroscopy strongly limited the application of DDLS method by affecting the effective scattering light intensity. Proper laser wavelength should be chosen before the application of this method. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《光电子快报》浏览原始摘要信息 |
|
点击此处可从《光电子快报》下载全文 |
|
