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	Self-Assembly of Polymer End-Tethered Gold Nanorods into Two-Dimensional Arrays with Tunable Tilt Structures
	BSRF用户
	2021
Source Publication	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
EISSN	1944-8252
Volume	13Issue:5Pages:6566--6574
Subtype	Article
Abstract	We demonstrated a facile yet effective strategy for self-assembly of polymer end-tethered gold nanorods (GNRs) into tunable two-dimensional (2D) arrays with the assistance of supramolecules of hydrogen bonded poly(4-vinyl pyridine) (P4VP) and 3-n-pentadecylphenol (PDP). Well-ordered 2D arrays with micrometer size were obtained by rupturing the assembled supramolecular matrix with a selective solvent. The formation of long-range ordered 2D arrays during a drying process was observed via small-angle X-ray scattering. Interestingly, the packing structure of the ordered arrays strongly depends on the molecular weight (M-w) of the polymer ligands and the size of the GNRs. By increasing M-w of the polymer ligands, tilted arrays can be obtained. The average angle between GNRs and the surface normal direction of the layered 2D arrays changes from 0 to 37 degrees with the increase in M-w of the polymer ligands. A mechanism for assembly behavior of dumbbell shapes with a soft shell structure has been proposed. The resulting GNR arrays with different orientations showed anisotropic surface-enhanced Raman scattering (SERS) performance. We showed that the vertically ordered GNR arrays exhibited similar to 3 times higher SERS signals than the tilt ordered arrays. The results prove that the polymer end-tethered GNRs can be used as a building block for preparing the tilted 2D arrays with tunable physicochemical properties, which could have a wide range of potential applications in photonics, electronics, plasmonics, etc.
DOI	10.1021/acsami.0c22468
Indexed By	SCI
Language	英语
WOS Research Area	Science & Technology - Other Topics ; Materials Science
WOS Subject	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS ID	WOS:000619638400066
ItemNo	BSRF00816
beamline	1W2A
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ihep.ac.cn/handle/311005/293584
Collection	北京同步辐射装置
Recommended Citation GB/T 7714	BSRF用户. Self-Assembly of Polymer End-Tethered Gold Nanorods into Two-Dimensional Arrays with Tunable Tilt Structures[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(5):6566--6574.
APA	BSRF用户.(2021).Self-Assembly of Polymer End-Tethered Gold Nanorods into Two-Dimensional Arrays with Tunable Tilt Structures.ACS APPLIED MATERIALS & INTERFACES,13(5),6566--6574.
MLA	BSRF用户."Self-Assembly of Polymer End-Tethered Gold Nanorods into Two-Dimensional Arrays with Tunable Tilt Structures".ACS APPLIED MATERIALS & INTERFACES 13.5(2021):6566--6574.

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