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The gold nanoparticle springs' spectrum modulation
Wang, Zhenyu1; Ouyang, Xinrong1; Liu, Jing1; Xiong, Bin2; Wen, Xiaodong3; He, Yan3; Liao, Xiaoyong4
2018-11-01
Source PublicationMATERIALS RESEARCH EXPRESS
ISSN2053-1591
Volume5Issue:11Pages:10
Corresponding AuthorLiu, Jing(liujing@ss.pku.edu.cn)
AbstractThe nanoparticles' localized surface plasma resonance (LSPR) reveals an excellent light manipulation potentiality for the nano scale optical device development. Due to the coupling effect, the LSPR is very sensitive to the distance between the nanoparticles. Using the surface modification one nanoparticle could be grafted onto another one. But the LSPR peak shifting of such twin-nanoparticles architecture was stationary. In this study, the gold nanoparticles springs (80 nm AuNp (gold nanoparticle)-PEG 75 (Polyethylene glycol) chain-45 nm AuNp) were on-situ self-assembly anchored on the glass substrate inside the ITO (indium-tin-oxide) electrodes pair trenches. Since the 80 nm AuNPs were grafted on the glass substrate by the Au-S bonds. Utilizing the large angle laser irradiation dark field microscopic imaging technology, the scattering spectral shifting of the deformed gold nanoparticles springs could be easily traced. With the electric field changing and reversing, the scattering spectra of the parallel gold nanoparticle springs showed an accredited linear (r(2) = 0.8) modulation from 570 nm to 620 nm. Although the linked PEG 75 molecular is a long flexible transparent polymer chain. Deducting from the semi-empirical formula of LSPR, zeta potential, and the PEG worm like chain (WLC) deformation model, the wreathed length (5-18 nm) of the parallel gold nanoparticles springs under the dynamic electrostatic field (-100-100 KV m(-1)) could be speculated. The FDTD (Finite Difference Time Domain) simulation also provided the similar spectral shifting numerical results. With the development of the gold nanoparticles springs precisely controlling, many nano optical spectral modulation applications will be promoted.
Keywordgold nanoparticles spring spectrum modulation LSPR large angle laser irradiation dark field observation
DOI10.1088/2053-1591/aade2b
WOS KeywordOPTICAL-PROPERTIES ; METAL NANOPARTICLES ; SHAPE ; SIZE ; ENVIRONMENT ; RESONANCES ; NANORODS ; FORCE ; TIME
Indexed BySCI
Language英语
Funding ProjectChinese Academy of Sciences Scientific Equipment Research Project[YJKYYQ20170003]
Funding OrganizationChinese Academy of Sciences Scientific Equipment Research Project
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000444483200001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52952
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Jing
Affiliation1.Peking Univ, Sch Software & Microelect Wuxi, Wuxi 214125, Peoples R China
2.Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
3.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zhenyu,Ouyang, Xinrong,Liu, Jing,et al. The gold nanoparticle springs' spectrum modulation[J]. MATERIALS RESEARCH EXPRESS,2018,5(11):10.
APA Wang, Zhenyu.,Ouyang, Xinrong.,Liu, Jing.,Xiong, Bin.,Wen, Xiaodong.,...&Liao, Xiaoyong.(2018).The gold nanoparticle springs' spectrum modulation.MATERIALS RESEARCH EXPRESS,5(11),10.
MLA Wang, Zhenyu,et al."The gold nanoparticle springs' spectrum modulation".MATERIALS RESEARCH EXPRESS 5.11(2018):10.
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