Optical properties of carbon microcoils

Journal Article · Mon Jan 27 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4863501· OSTI ID:22280542

Hikita, Muneaki; Cao, Li; Lafdi, Khalid ^[1]

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1. University of Dayton, Dayton, Ohio 45469 (United States)

Carbon microcoils (CMCs) have emerged as versatile material artifacts for a variety of applications due to their helical and spiral structures. Embedded in matrix, CMCs have already been demonstrated for their potential tactile/proximity sensor application. In this study, CMCs were prepared using a conventional chemical vapor deposition method, and then were functionalized with octadecylamine. Upon photoexcitation, the functionalized CMCs exhibited photoluminescence in the visible region, which has never been found before. Similar to carbon based nanoparticles, the photoluminescence of CMCs was attributed to electron-hole radiative recombination after surface passivation. The results suggested that this kind of fluorescent functionalized CMCs might be used as a promising class of optical agents for biological applications.

• OSTI ID: 22280542
• Journal Information: Applied Physics Letters, Vol. 104, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON
CHEMICAL VAPOR DEPOSITION
FLUORESCENCE
HOLES
MATRIX MATERIALS
NANOSTRUCTURES
OPTICAL PROPERTIES
PARTICLES
PASSIVATION
PHOTOLUMINESCENCE
POTENTIALS
RECOMBINATION
SENSORS
SURFACES