Shape evolution of silver nanoplates through heating and photoinduction

Tang, Bin, Xu, Shuping, Hou, Xueliang, Li, Jingliang, Sun, Lu, Xu, Weiqing and Wang, Xungai 2013, Shape evolution of silver nanoplates through heating and photoinduction, ACS applied materials and Interfaces, vol. 5, no. 3, pp. 646-653, doi: 10.1021/am302072u.

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Title Shape evolution of silver nanoplates through heating and photoinduction
Author(s) Tang, BinORCID iD for Tang, Bin
Xu, Shuping
Hou, Xueliang
Li, JingliangORCID iD for Li, Jingliang
Sun, LuORCID iD for Sun, Lu
Xu, Weiqing
Wang, XungaiORCID iD for Wang, Xungai
Journal name ACS applied materials and Interfaces
Volume number 5
Issue number 3
Start page 646
End page 653
Total pages 8
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2013
ISSN 1944-8244
Keyword(s) heating aging
light irradiation
localized surface plasmon resonance
shape conversion
silver nanoparticles
Summary Shape conversions of silver nanoplates were realized by heating and subsequent light irradiation. The initial silver nanoprisms were transformed into silver nanodisks gradually in the process of heating, which was possibly achieved through dissolving and readsorption of silver atoms on the surface of silver nanoplates. Subsequently, under light irradiation, the heating induced silver nanodisks were reversed to silver nanoprisms in the same solution. The dissolved oxygen was found to play a pivotal role in the shape conversion from nanoprism to nanodisk. In addition to heating, deionized water could induce the shape conversion of silver nanoplates when it was added to precipitate of the initial silver nanoprisms after centrifugation. Citrate in solution is essential to the photoinduced shape conversion process. Transmission electron microscopy (TEM) and extinction spectroscopy results demonstrated that localized surface plasmon resonance (LSPR) properties of silver nanoplates were effectively tuned through shape conversion.
Language eng
DOI 10.1021/am302072u
Field of Research 100706 Nanofabrication, Growth and Self Assembly
030306 Synthesis of Materials
030603 Colloid and Surface Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, American Chemical Society
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