Carbon Nanotube Photoluminescence Modulation by Local Chemical and Supramolecular Chemical Functionalization

Shiraki, Tomohiro; Miyauchi, Yuhei; Matsuda, Kazunari; Nakashima, Naotoshi

doi:10.1021/acs.accounts.0c00294

Cited by 75 publications

(96 citation statements)

References 89 publications

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“…Many more variations have been reported. Several reviews have provided detailed overviews on the different chemical reactions, [32,34,35] such that this review will focus on a few generalized concepts and more recent examples. Note that it is also possible to covalently functionalize carbon nanotubes without affecting the conjugation of the carbon lattice as shown by Setaro et al using a [2+1] reaction with azidodichlorotriazine.…”

Section: Introductionmentioning

confidence: 99%

“…However, an important paradigm shift occurred when it became clear that defects in the sp 2 carbon lattice of nanotubes are not always detrimental to the photoluminescence yield, but can indeed lead to new electronic states with highly interesting and useful optical properties. [28][29][30] These specific defects, which are variably named sp 3 defects, luminescent defects, organic color centers or quantum defects [31][32][33][34][35] have been at the heart of many recent studies on carbon nanotubes and promise a wide range of potential applications from single-photon emission to in vivo super-resolution imaging. This review will briefly introduce the underlying photo physics and properties of these defects, peruse recent progress in their controlled creation and discuss the various potential applications in detail.Semiconducting single-walled carbon nanotubes show extraordinary electronic and optical properties, such as high charge carrier mobilities and diameter-dependent near-infrared photoluminescence.…”

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confidence: 99%

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Luminescent Defects in Single‐Walled Carbon Nanotubes for Applications

Zaumseil

2021

Advanced Optical Materials

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most applications, only semiconducting nanotubes and ideally only one (n,m) species (monochiral) are desired. This technological need has pushed the search for more controlled and selective growth of SWCNTs [5,6] and even more importantly fueled the development of post-growth purification and sorting of the different nanotube types and chiralities. Various, quite different techniques, such as gelchromatography, [7][8][9] aqueous two-phase separation (ATPE), [10][11][12] and selective polymer-wrapping, [13][14][15][16][17] now make it possible to produce and work with sufficiently large amounts of not only purely semiconducting nanotubes of a certain diameter range but also monochiral nanotubes and even enantiomerically pure samples. [18,19] This high degree of purification and hence the availability of nanotubes as a material with reproducible properties has been critical for applications in electronics [20,21] and energy conversion, [22,23] as well as imaging [24,25] and sensing [26,27] based on the near-infrared photoluminescence (PL) of SWCNTs and its modulation. However, an important paradigm shift occurred when it became clear that defects in the sp 2 carbon lattice of nanotubes are not always detrimental to the photoluminescence yield, but can indeed lead to new electronic states with highly interesting and useful optical properties. [28][29][30] These specific defects, which are variably named sp 3 defects, luminescent defects, organic color centers or quantum defects [31][32][33][34][35] have been at the heart of many recent studies on carbon nanotubes and promise a wide range of potential applications from single-photon emission to in vivo super-resolution imaging. This review will briefly introduce the underlying photo physics and properties of these defects, peruse recent progress in their controlled creation and discuss the various potential applications in detail.Semiconducting single-walled carbon nanotubes show extraordinary electronic and optical properties, such as high charge carrier mobilities and diameter-dependent near-infrared photoluminescence. The introduction of sp 3 defects in the carbon lattice of these nanotubes creates new electronic states that result in even further red-shifted photoluminescence with longer lifetimes and higher photoluminescence yield. These luminescent defects or organic color centers can be tuned chemically by controlling the precise binding configuration and the electrostatic properties of the attached substituents. This review covers the basic photophysics of luminescent sp 3 defects, synthetic methods for their controlled formation and discusses their application as near-infrared single-photon emitters at room temperature, in electroluminescent devices, as versatile optical sensors, and as fluorophores for bioimaging and potential super-resolution microscopy.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Luminescent Defects in Single‐Walled Carbon Nanotubes for Applications

Zaumseil

2021

Advanced Optical Materials

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“…ovalent functionalization of single-walled carbon nanotubes (SWNTs) has a long history and many different types of chemistry have been explored [1][2][3] . However, a major paradigm shift occurred with the discovery of luminescent sp 3 defects [4][5][6][7][8][9][10] . Rather than quenching near-infrared photoluminescence (PL) of semiconducting SWNTs, these sp 3 defects with covalently attached functional groups were found to create highly emissive states at lower energies.…”

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confidence: 99%

Synthetic control over the binding configuration of luminescent sp3-defects in single-walled carbon nanotubes

et al. 2021

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The controlled functionalization of single-walled carbon nanotubes with luminescent sp3-defects has created the potential to employ them as quantum-light sources in the near-infrared. For that, it is crucial to control their spectral diversity. The emission wavelength is determined by the binding configuration of the defects rather than the molecular structure of the attached groups. However, current functionalization methods produce a variety of binding configurations and thus emission wavelengths. We introduce a simple reaction protocol for the creation of only one type of luminescent defect in polymer-sorted (6,5) nanotubes, which is more red-shifted and exhibits longer photoluminescence lifetimes than the commonly obtained binding configurations. We demonstrate single-photon emission at room temperature and expand this functionalization to other polymer-wrapped nanotubes with emission further in the near-infrared. As the selectivity of the reaction with various aniline derivatives depends on the presence of an organic base we propose nucleophilic addition as the reaction mechanism.

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“…[12,13] In addition, SWCNTs also have broad application prospects in the fields of information, energy, and biomedicine due to their excellent optical, electrical, thermal, and mechanical properties. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] For example, metallic SWCNTs are ideal conductive materials for fabricating the transparent conductive films used in various flexible electronic devices due to their superior conductivity, flexibility, and stability. [18,[29][30][31][32] In contrast, semiconducting SWCNTs with nanoscale diameters can be used to fabricate high-performance, high-speed and powerefficient field-effect transistors (FETs) due to their good size reduction effect in device fabrication, extremely high carrier mobility and structure-dependent band gaps.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Structure Separation of Single‐Wall Carbon Nanotubes and Their Application in Optics, Electronics, and Optoelectronics

Wei

Wang

et al. 2022

Advanced Science

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Structural control of single-wall carbon nanotubes (SWCNTs) with uniform properties is critical not only for their property modulation and functional design but also for applications in electronics, optics, and optoelectronics. To achieve this goal, various separation techniques have been developed in the past 20 years through which separation of high-purity semiconducting/metallic SWCNTs, single-chirality species, and even their enantiomers have been achieved. This progress has promoted the property modulation of SWCNTs and the development of SWCNT-based optoelectronic devices. Here, the recent advances in the structure separation of SWCNTs are reviewed, from metallic/semiconducting SWCNTs, to single-chirality species, and to enantiomers by several typical separation techniques and the application of the corresponding sorted SWCNTs. Based on the separation procedure, efficiency, and scalability, as well as, the separable SWCNT species, purity, and quantity, the advantages and disadvantages of various separation techniques are compared. Combined with the requirements of SWCNT application, the challenges, prospects, and development direction of structure separation are further discussed.

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Carbon Nanotube Photoluminescence Modulation by Local Chemical and Supramolecular Chemical Functionalization

Cited by 75 publications

References 89 publications

Luminescent Defects in Single‐Walled Carbon Nanotubes for Applications

Luminescent Defects in Single‐Walled Carbon Nanotubes for Applications

Synthetic control over the binding configuration of luminescent sp3-defects in single-walled carbon nanotubes

Recent Advances in Structure Separation of Single‐Wall Carbon Nanotubes and Their Application in Optics, Electronics, and Optoelectronics

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