Direct measurement of the absolute absorption spectrum of individual semiconducting single-wall carbon nanotubes

Blancon, Jean-Christophe; Paillet, Matthieu; Tran, Huy-Nam; Than, Xuan Tinh; Guebrou, S. Aberra; Ayari, A.; San-Miguel, Alfonso; Phan, Ngoc-Minh; Zahab, Ahmed-Azmi; Sauvajol, Jean‐Louis; Fatti, Natalia Del; Vallée, Fabrice

doi:10.1038/ncomms3542

Cited by 95 publications

(149 citation statements)

References 57 publications

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“…14, 31, 32 Single-particle extinction techniques, such as spatial modulation spectroscopy 24,33,34 and white-light scattering interference spectroscopy, 35 have been applied as an alternative route to record the spectrum of nanoparticles. 35,36 Although for the smallest nanoparticle sizes the extinction spectrum is dominated by absorption, it is often important to obtain the pure absorption spectrum, ideally in comparison to the scattering of the same nanoparticle.…”

mentioning

confidence: 99%

Single-Particle Absorption Spectroscopy by Photothermal Contrast

et al. 2015

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Removing effects of sample heterogeneity through single-molecule and single-particle techniques has advanced many fields. While background free luminescence and scattering spectroscopy is widely used, recording the absorption spectrum only is rather difficult. Here we present an approach capable of recording pure absorption spectra of individual nanostructures. We demonstrate the implementation of single-particle absorption spectroscopy on strongly scattering plasmonic nanoparticles by combining photothermal microscopy with a supercontinuum laser and an innovative calibration procedure that accounts for chromatic aberrations and wavelength-dependent excitation powers. Comparison of the absorption spectra to the scattering spectra of the same individual gold nanoparticles reveals the blueshift of the absorption spectra, as predicted by Mie theory but previously not detectable in extinction measurements that measure the sum of absorption and scattering. By covering a wavelength range of 300 nm, we are furthermore able to record absorption spectra of single gold nanorods with different aspect ratios. We find that the spectral shift between absorption and scattering for the longitudinal plasmon resonance decreases as a function of nanorod aspect ratio, which is in agreement with simulations.

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mentioning

confidence: 99%

Single-Particle Absorption Spectroscopy by Photothermal Contrast

et al. 2015

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“…As recently reported 12,13 , the perpendicular-polarization absolute absorption cross-sectional spectra show small and finite perpendicular absorption (approximately 1/4 13 or ,1/10 12 of parallel polarization one), and they are largely featureless 13 . However, the parallel-polarization spectra show prominent and different exciton transition peaks, which provide rich information on chirality-dependent nanotube photophysics.…”

Section: Thermal Conductivity Measurementmentioning

confidence: 88%

“…Considering that the surrounding environment of CNTs (particularly the substrate and adjacent tubes 10,11 ) may remarkably affect the properties of CNTs, a reliable experimental determination of the intrinsic properties at the single-tube level is currently a matter of concern. Recent light absorption investigations of individual nanotubes have focused on different resonant and nonresonant modes using spatial modulation spectroscopy 12 , polarization-based homodyne microscope 13 , and photoconductivity spectra 14 . However, to avoid the optical detection difficulty from the small cross section of SWCNTs, the light-induced thermal effect was considered a suitable method to study the thermal and optical properties of CNTs, which is also significant to both the function of optical devices 15 and SWCNT species control [16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a flowguided synthesis method was reported to grow ultra-long nanotubes with perfect crystalline structure (maintaining the chirality without any change for more than hundreds of micrometers 21 ). Therefore, the ultra-long nanotube is considered an ideal object to characterize intrinsic nanotube properties, particularly the suspended nanotube with unique superiority in avoiding any effects from the substrate 12,22 .…”

Section: Introductionmentioning

confidence: 99%

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Optical visualization and polarized light absorption of the single-wall carbon nanotube to verify intrinsic thermal applications

Xiao

Cai

et al. 2015

Light Sci Appl

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The predicted extraordinary properties of carbon nanotubes (CNTs) from theoretical calculations have great potential for many applications. However, reliable experimental determination of intrinsic properties at the single-tube level is currently a matter of concern, and many challenges remain because of the unhandled and nanoscale size of individual nanotubes. Here, we demonstrated a prototype to detect the intrinsic thermal conductivity of the single-wall carbon nanotube (SWCNT) and verify the significant non-resonant optical absorption behavior on tiny nanotubes by integrating the nanotube and ice into a new core-shell design. In particular, a reversible optical visualization method based on the individual suspended ultra-long SWCNT was first developed by wrapping a nanotube with ice in the cryogenic air environment. The light-induced thermal effect on the hybrid core-shell structure was used to melt the ice shell, which subsequently acted as a temperature sensor to verify the intrinsic thermal conductivity of the core-like nanotube. More interestingly, we successfully determined for the first time the thermal response phenomenon of the tiny absorption cross section in SWCNT in the vertical-polarization configuration and the significant non-resonant absorption behavior in the parallel-polarization configuration. These investigations will provide a better understanding for the unique optical behaviors of CNT and enable the detection of intrinsic properties of various one-dimensional nanostructures such as nanotubes, nanowires, and nanoribbons.

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“…Unlike PLE, Resonance Raman spectroscopy works equally well with bundled and mono-dispersed samples and therefore requires little sample preparation. Whilst as yet little used, Rayleigh scattering spectroscopy on individual nanowires 24 followed by Transmission Electron Microscope (TEM) analysis of the structure of the nanowire can identify all of the optical excitation energies of the wire in the spectral range investigated and identify a particular nanowire structure. However, this technique does not provide the vibrational energy information possible with RRS; it is very challenging to perform and is never going to be suitable as a general characterization tool.…”

Section: Introductionmentioning

confidence: 99%

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

Smith

Spencer

Sloan

et al. 2016

JoVE

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This paper briefly describes how nanowires with diameters corresponding to 1 to 5 atoms can be produced by melting a range of inorganic solids in the presence of carbon nanotubes. These nanowires are extreme in the sense that they are the limit of miniaturization of nanowires and their behavior is not always a simple extrapolation of the behavior of larger nanowires as their diameter decreases. The paper then describes the methods required to obtain Raman spectra from extreme nanowires and the fact that due to the van Hove singularities that 1D systems exhibit in their optical density of states, that determining the correct choice of photon excitation energy is critical. It describes the techniques required to determine the photon energy dependence of the resonances observed in Raman spectroscopy of 1D systems and in particular how to obtain measurements of Raman cross-sections with better than 8% noise and measure the variation in the resonance as a function of sample temperature. The paper describes the importance of ensuring that the Raman scattering is linearly proportional to the intensity of the laser excitation intensity. It also describes how to use the polarization dependence of the Raman scattering to separate Raman scattering of the encapsulated 1D systems from those of other extraneous components in any sample.

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Direct measurement of the absolute absorption spectrum of individual semiconducting single-wall carbon nanotubes

Cited by 95 publications

References 57 publications

Single-Particle Absorption Spectroscopy by Photothermal Contrast

Single-Particle Absorption Spectroscopy by Photothermal Contrast

Optical visualization and polarized light absorption of the single-wall carbon nanotube to verify intrinsic thermal applications

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

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