Journal
NANO LETTERS
Volume 9, Issue 2, Pages 819-825Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl803539g
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Funding
- Air Force Office of Scientific Research (AFOSR)
- National Science Foundation (NSF)
- Penn State Center for Nanoscale Science
- KAUST Scholar Award
- Founder's Prize
- American Academy of Mechanics
- Direct For Mathematical & Physical Scien [1041943] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0801922] Funding Source: National Science Foundation
- Division Of Chemistry [1041943] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [820404] Funding Source: National Science Foundation
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A gold nanodisk array, coated with bistable, redox-controllable [2]rotaxane molecules, when exposed to chemical oxidants and reductants, undergoes switching of its plasmonic properties reversibly. By contrast, (i) bare gold nanodisks and (ii) disks coated with a redox-active, but mechanically inert, control compound do not display surface-plasmon-based switching. Along with calculations based on time-dependent density functional theory, these experimental observations suggest that the nanoscale movements within surface-bound molecular machines can be used as the active components in plasmonic devices.
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