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One-Dimensional Cuprous Selenide Nanostructures with Switchable Plasmonic and Super-ionic Phase Attributes

Authors
Cho, Ki-HyunHeo, JaeyoungSung, Yun-MoJain, Prashant K.
Issue Date
17-6월-2019
Publisher
WILEY-V C H VERLAG GMBH
Keywords
cation exchange; CdSe; ion conduction; plasmon; solid electrolytes
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.58, no.25, pp.8410 - 8415
Indexed
SCIE
SCOPUS
Journal Title
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume
58
Number
25
Start Page
8410
End Page
8415
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/64756
DOI
10.1002/anie.201902290
ISSN
1433-7851
Abstract
Cuprous selenide nanocrystals have hallmark attributes, especially tunable localized surface plasmon resonances (LSPRs) and super-ionic behavior. These attributes of cuprous selenide are now integrated with a one-dimensional morphology. Essentially, Cu2Se nanowires (NWs) of micrometer-scale lengths and about 10nm diameter are prepared. The NWs exhibit a super-ionic phase that is stable at temperatures lower than in the bulk, owing to compressive lattice strain along the radial dimension of the NWs. The NWs can be switched between oxidized and reduced forms, which have contrasting phase transition and LSPR characteristics. This work thus makes available switchable, one-dimensional waveguides and ion-conducting channels.
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