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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202001384
|2 doi
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|a eng
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| 100 |
1 |
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|a Kim, Jong Bin
|e verfasserin
|4 aut
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| 245 |
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|a Plasmonic Janus Microspheres Created from Pickering Emulsion Drops
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|c 2020
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Metal nanostructures have been created in a film format to develop unique plasmonic properties. Here, well-defined metal nanostructures are designed on the surface of microspheres to provide plasmonic microgranules. As conventional techniques are inadequate for nanofabrication on spherical surfaces, photocurable emulsion drops with a regular array of silica particles are employed at the interface to create periodic nanostructures. The silica particles, originating from the dispersed phase, fully cover the interface by forming a non-close-packed hexagonal array after drop generation, and slowly protrude to the continuous phase during aging while their interparticle separation decreases. Therefore, hexagonal arrays of spherical dimples with controlled geometry and separation are created on the surface of microspheres by photocuring the drops and removing the particles. Directional deposition of either aluminum or gold results in a continuous film with a hexagonal array of holes on the outermost surface and isolated curved disks in dimples, which renders the hemisphere of microspheres plasmonically colored. The resonant wavelength is controlled by adjusting the aging time, metal thickness, and size of silica particles, providing various plasmonic colors. This granular format of the plasmonic Janus microspheres will open a new avenue of optical applications including active color pixels, optical barcodes, and microsensors
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|a Journal Article
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|a Janus microspheres
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|a Pickering emulsions
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|a colloids
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|a plasmonic colors
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|a self-assembly
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1 |
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|a Lee, Su Yeon
|e verfasserin
|4 aut
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1 |
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|a Min, Nam Gi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Seung Yeol
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Shin-Hyun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 26 vom: 21. Juli, Seite e2001384
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:26
|g day:21
|g month:07
|g pages:e2001384
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|u http://dx.doi.org/10.1002/adma.202001384
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