Optical properties of polymer films with embedded single‐wall carbon nanotubes

Chernov, A. I.; Obraztsova, E. D.; Лобач, А. С.

doi:10.1002/pssb.200776152

Cited by 40 publications

(33 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The NALM is formed by a 20:80 fibre coupler and dispersion managed by normal dispersion germanium-silica fibre (GeO 2 /SiO 2 ) [239]. A polymer film based on carboxymethylcellulose (CMC) with dispersed arc discharge SWNTs [243] is fixed between two angle-polished optical ferrules. The shortest pulse duration of 450 fs at 1870 nm central wavelength band (insert in Figure 18A) has been achieved when the total was zero NALM dispersion.…”

Section: Thulium (Tm)-doped Fibre Lasersmentioning

confidence: 99%

Carbon nanotubes for ultrafast fibre lasers

et al. 2016

View full text Add to dashboard Cite

Carbon nanotubes (CNTs) possess both remarkable optical properties and high potential for integration in various photonic devices. We overview, here, recent progress in CNT applications in fibre optics putting particular emphasis on fibre lasers. We discuss fabrication and characterisation of different CNTs, development of CNTbased saturable absorbers (CNT-SA), their integration and operation in fibre laser cavities putting emphasis on stateof-the-art fibre lasers, mode locked using CNT-SA. We discuss new design concepts of high-performance ultrafast operation fibre lasers covering ytterbium (Yb), bismuth (Bi), erbium (Er), thulium (Tm) and holmium (Ho)-doped fibre lasers.

show abstract

Section: Thulium (Tm)-doped Fibre Lasersmentioning

confidence: 99%

Carbon nanotubes for ultrafast fibre lasers

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The only exception we have www.pss-b.com observed is the peak in suspension with an excitation at 680 nm and emission at 1260 nm which shows a 5 nm (14 meV) blue shifted PLE. It corresponds, probably, to (9,5) nanotubes.…”

Section: Preparation Of Filmsmentioning

confidence: 95%

“…The polymer films with embedded SWNTs were prepared by mixing 1 mL SWNT suspension with 1 mL 3% (w/v) carboxymetylcellulose (medium viscosity, SigmaAldrich) [9]. The films have been formed by a slow drying in a small diameter cup.…”

Section: Preparation Of Filmsmentioning

confidence: 99%

“…One of the most informative tools for characterization of such films is an optical spectroscopy. The optical absorption spectra not only show the absorption band positions and the transmittance value [9] but also allow to estimate the distribution of SWNTs within the suspension or films based on these suspensions [10,11]. Individual semiconducting SWNTs demonstrate a bright photoluminescence (PL) [12].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Photoluminescence of single‐wall carbon nanotube films

Chernov¹,

Obraztsova²

2010

Physica Status Solidi (b)

View full text Add to dashboard Cite

In this work, we report the photoluminescence (PL) studies of the films produced by different methods from pristine singlewall carbon nanotubes (SWNTs). The suspensions of CoMo-CAT and HiPCO SWNTs were used to make two different types of films: the polymer films with embedded SWNTs and the SWNT films deposited onto quartz substrates through filtration. A density gradient ultracentrifugation (DGU) has been used for enrichment of the initial carbon nanotube suspensions with semiconducting SWNTs and extraction of various diameter nanotubes to reveal a role of the nanotube interaction in the films. Optical diagnostic techniques including Raman spectroscopy, UV-VIS-NIR absorption spectroscopy, and PL have been used for characterization and comparison of the initial suspensions and films formed from them. A PL mapping has revealed an arrangement of carbon nanotubes inside the films.A cross-linkage between the individual SWNTs appeared to be higher inside the films deposited via filtration than in the polymer films with dispersed SWNTs.The images of objects under investigation (from left to right): a SWNT suspension after DGU; a film deposited onto quartz substrate and a polymer film with embedded SWNTs ß

show abstract

“…The fractions with the shifted dominant absorption peaks can be used for formation of ultra fast light beam modulators (saturable absorbers) in laser physics [6]. DGU allows to extend significantly their working spectral range and quantum efficiency by adjusting the characteristics of the separated SWNT fractions to exact wavelengths [7]. The amount of SWNT fraction in the raw material obtained was around 20%.…”

mentioning

confidence: 99%

Metallic single‐wall carbon nanotubes separated by density gradient ultracentrifugation

Chernov

Obraztsova

2009

Physica Status Solidi (b)

View full text Add to dashboard Cite

A density gradient ultracentrifugation (DGU) technique recently applied for separation of single-wall carbon nanotubes (SWNTs) over diameter also appeared to be efficient for the nanotube separation according to their electronic structure. In this work we used DGU for extraction of a highly metallic (>97 wt%) nanotube fraction from a raw soot of arc-discharge SWNTs. The process parameters (the surfactant type and concentration, the treatment time, the approach to the gradient formation) have been optimized. A variation of surfactant concentration allowed obtaining the highly metallic nanotube fractions with different dominant diameter distribution resulting in the ''blue'' or ''green'' top fractions. Sodium taurodeoxycholate (TDOC) was efficiently used for DGU separation of raw, non-purified SWNTs. The fractions have been studied with the UV-Vis-NIR absorption and Raman spectroscopy.Photograph of the SWNT solution after DGU.

show abstract

Optical properties of polymer films with embedded single‐wall carbon nanotubes

Cited by 40 publications

References 19 publications

Carbon nanotubes for ultrafast fibre lasers

Carbon nanotubes for ultrafast fibre lasers

Photoluminescence of single‐wall carbon nanotube films

Metallic single‐wall carbon nanotubes separated by density gradient ultracentrifugation

Contact Info

Product

Resources

About