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Fluorescent semiconducting single-walled carbon nanotubes (SWCNTs) hold considerable promise for photonics. Furthermore, the optical characteristics of the material can be significantly improved by covalent modification, which generates new…

Near-infrared electroluminescence from carbon-based emitters, especially in the second biological window (NIR-II) or at telecommunication wavelengths, is difficult to achieve. Single-walled carbon nanotubes (SWCNTs) have been proposed as a…

Applied Physics · Physics 2023-11-01 Nicolas F. Zorn , Simon Settele , Finn L. Sebastian , Sebastian Lindenthal , Jana Zaumseil

Their outstanding electrical and optical properties make semiconducting single-walled carbon nanotubes (SWCNTs) highly suitable for charge transport and emissive layers in near-infrared optoelectronic devices. However, the luminescence…

In this work, tin oxide (SnO2)/multi-walled carbon nanotube (MWCNT) composite based ethanol sensor that exhibits fast response/recovery behaviour, large sensitivity, and good selectivity was demonstrated. First, Pd doped SnO2 (SnO2-Pd)…

Applied Physics · Physics 2019-06-10 Cihat Tasaltin

Optical waveguides, covered with thin films, which transmittance can be controlled by external action, are widely used in various applications from optical modulators to saturable absorbers. It is natural to suggest that the waveguide…

Photovoltaics has two main processes: Optical absorption and power conversion. In photosynthesis, the two equivalent processes are optical absorption and chemical conversion. Whereas in the latter, the two processes are carried out by…

Mesoscale and Nanoscale Physics · Physics 2022-12-07 Gideon Oyibo , Thomas Barrett , Sharadh Jois , Jeffrey Blackburn , Ji Ung Lee

Telecommunications and polarimetry both require the active control of the polarization of light, Currently, this is done by combining intrinsically anisotropic materials with tunable isotropic materials into heterostructures using…

The recent development of efficient chirality sorting techniques has opened the way to the use of single-walled carbon nanotubes (SWCNTs) in a plethora of nanoelectronic, photovoltaic, and optoelectronic applications. However, to understand…

Mesoscale and Nanoscale Physics · Physics 2019-12-25 María Rosa Preciado-Rivas , Victor Alexander Torres-Sánchez , Duncan J. Mowbray

The covalent functionalization of single-walled carbon nanotubes (SWNTs) with luminescent oxygen defects increases their brightness and enables their application as optical biosensors or fluorescent probes for in-vivo imaging in the…

Photoluminescence properties of semiconducting single wall carbon nanotubes (s-SWNT) thin films with different metallic single wall carbon nanotubes (m-SWNT) concentrations are reported. s-SWNT purified samples are obtained by polymer…

We report specifically two things, one the phenomenon of optically induced motion in pristine single walled carbon nanotubes (SWNT) on the macro-scale and other the consequent separation of metallic and semiconducting enriched SWNT…

Mesoscale and Nanoscale Physics · Physics 2019-08-17 Gopannagari Madhusudana , Vikram Bakaraju , H. Chaturvedi

The remarkable electrical and optical properties or single-walled carbon nanotubes (SWNT) allowed for engineering device prototypes showing great potential for applications such as photodectors and solar cells. However, any path towards…

Mesoscale and Nanoscale Physics · Physics 2014-10-29 Gilles Buchs , Salvatore Bagiante , Gary A. Steele

Current methods for producing single-walled carbon nanotubes (SWNTs) lead to heterogeneous samples containing mixtures of metallic and semiconducting species with a variety of lengths and defects. Optical detection at the single nanotube…

Inorganic pyrophosphate is a key molecule in many biological processes from DNA synthesis to cell metabolism. Here we introduce sp$^{3}$-functionalized (6,5) single-walled carbon nanotubes (SWNTs) with red-shifted defect emission as…

Oxygen defects in semiconducting single-walled carbon nanotubes (SWCNTs) are localized disruptions in the carbon lattice caused by the formation of epoxy or ether groups, commonly through wet-chemical reactions. The associated modifications…

Applied Physics · Physics 2024-02-09 Sonja Wieland , Abdurrahman Ali El Yumin , Simon Settele , Jana Zaumseil

Investigations of the optical response of subwavelength structure arrays milled into thin metal films has revealed surprising phenomena including reports of unexpectedly high transmission of light. Many studies have interpreted the optical…

Optics · Physics 2009-11-11 G. Gay , O. Alloschery , B. Viaris de Lesegno , C. O'Dwyer , J. Weiner , H. J. Lezec

We study quantum optical properties of the single-walled carbon nanotube (SWCNT) by introducing the effective interaction between the quantized electromagnetic field and the confined electrons in the SWCNT. Our purpose is to explore the…

Mesoscale and Nanoscale Physics · Physics 2009-04-30 Z. L. Guo , Z. R. Gong , C. P. Sun

Optical hyperspectral imaging based on absorption and scattering of photons at the visible and adjacent frequencies denotes one of the most informative and inclusive characterization methods in material research. Unfortunately, restricted…

Biomedical applications of carbon nanotubes have attracted much attention in recent years. Here, we summarize our previously developed protocols for functionalization and bioconjugation of single wall carbon nanotubes (SWNTs) for various…

Materials Science · Physics 2009-10-06 Zhuang Liu , Scott Tabakman , Zhuo Chen , Hongjie Dai

Polarized optical microscopy and spectroscopy are progressively becoming key methods for the high-throughput characterization of individual carbon nanotubes (CNTs) and other one-dimensional nanostructures, on substrate and in devices. The…

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