Bottom-Up Synthesis of Liquid-Phase-Processable Graphene Nanoribbons with Near-Infrared Absorption

Narita, Akimitsu; Verzhbitskiy, Ivan; Frederickx, Wout; Mali, Kunal S.; Jensen, Søren A.; Hansen, Michael Ryan; Bonn, Mischa; Feyter, Steven De; Casiraghi, Cinzia; Feng, Xinliang; Müllen, Kläus

doi:10.1021/nn5049014

Cited by 144 publications

(181 citation statements)

References 53 publications

Supporting

Mentioning

156

Contrasting

Order By: Relevance

“…Finally, adopting the bottom-up approach, graphene nanoribbons can be prepared by condensation of polycyclic aromatic hydrocarbons. 269 Frequently used polyaromatic hydrocarbons include polyphenylene precursors and hexaphenylbenzene-type polymers. 103 However, bottom-up syntheses of graphene nanoribbons still suffer from several drawbacks such as proper graphenization (i.e., transformation of 3D polyaromatic hydrocarbons into a rigid, planar aromatic structure), suitable reactivity, and regioselectivity.…”

Section: Methods For Preparing Carbonmentioning

confidence: 99%

Broad Family of Carbon Nanoallotropes: Classification, Chemistry, and Applications of Fullerenes, Carbon Dots, Nanotubes, Graphene, Nanodiamonds, and Combined Superstructures

et al. 2015

View full text Add to dashboard Cite

CONTENTS 1. Introduction 4745 2. Classification of Carbon Nanoallotropes: Structural Description and Characterization 4746 2.1. 0D Carbon Nanoallotropes 4746 2.1.1.Fullerenes and Onion-like Carbon 4746 2.1.2. Carbon Dots 4747 2.1.3. Graphene Quantum Dots 4748 2.1.4. Nanodiamonds 4749 2.2. 1D Carbon Nanoallotropes 4749 2.2.1. Carbon Nanotubes and Nanofibers 4749 2.2.2. Carbon Nanohorns 4750 2.3. 2D Carbon Nanoallotropes 4751 2.3.1. Graphene 4751 2.3.2. Multilayer Graphitic Nanosheets 4752 2.3.3. Graphene Nanoribbons 4754 3. Methods for Preparing Carbon Nanostructures 4754 3.1. 0D Carbon Nanoallotropes 4754 3.1.1. Fullerenes and Onion-like Carbon 4754 3.1.2. Carbon Dots 4755 3.1.3. Graphene Quantum Dots 4757 3.1.4. Nanodiamonds 4760 3.2. 1D Carbon Nanoallotropes 4761 3.2.1. Carbon Nanotubes and Nanofibers 4761 3.2.2. Carbon Nanohorns 4762 3.3. 2D Carbon Nanoallotropes 4762 3.3.1. Graphene 4762 3.3.2. Multilayer Graphitic Nanosheets 4763 3.3.3. Graphene Nanoribbons 4763 4. Fundamental Physicochemical Properties of Carbon Nanoallotropes 4764 4.1. Fundamental Properties of C 60 4764 4.2. Photoluminescence of Carbon Dots and Graphene Quantum Dots 4.3. Fundamental Properties of Nanodiamonds 4.4. Mechanical Properties of Graphene, Carbon Nanotubes, and Carbon Nanofibers 4.5. Electronic and Related Properties of Graphene, Graphene Nanoribbons, Carbon Nanotubes, and Carbon Nanohorns 4.6. Magnetic Properties of Carbon Nanoallotropes 4.7. Chemical Reactivity 4.7.1. Addition to sp 2 Carbon Atoms 4.7.2. Reactions at Edges and Defect Sites 4.7.3. Noncovalent Surface Interactions 4.7.4. Internal Spaces as Nanoreactors 5. Interconversions of Carbon Nanoallotropes 6.

show abstract

Section: Methods For Preparing Carbonmentioning

confidence: 99%

Broad Family of Carbon Nanoallotropes: Classification, Chemistry, and Applications of Fullerenes, Carbon Dots, Nanotubes, Graphene, Nanodiamonds, and Combined Superstructures

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Fig. 5 2 atoms. An increase in structural defects with increasing carbonization time was observed as seen from I D /I G ratios.…”

Section: 51mentioning

confidence: 99%

Generation of open-ended, worm-like and graphene-like structures from layered spherical carbon materials

et al. 2016

View full text Add to dashboard Cite

A study of the effects of size dispersion of Au@SiO 2 spheres and silica sphere templates for the synthesis of hollow carbon structures was evaluated using a chemical vapor deposition (CVD) nanocasting method. The diameter of the template, the presence of the gold nanoparticles and the polyvinylpyrrolidone (to cap the Au particles) were found to determine the size, thickness and shape of the synthesized carbon nanostructures. The Au@monodispersed small-sized silica sphere (80-110 nm) template covered with carbon followed by removal of silica produced broken hollow carbon spheres, whereas an equivalent Au@monodispersed large-sized silica sphere (110-150 nm) template produced hollow carbon spheres with a complete carbon shell. Monodispersed and polydispersed pristine silica spheres without Au produced hollow carbon spheres with complete and deformed carbon shells, respectively. Polyvinylpyrrolidone addition to polydispersed SiO 2 spheres, followed by carbonization with toluene (1 h) and SiO 2 removal, produced wormlike carbon structures. Carbonization (and SiO 2 removal) of Au@polydispersed silica spheres for a short carbonization time (1 h) gave a layered carbon nanosheet while at intermediate and longer carbonization times (2-4 h) gave nanotube-like (or worm-like) carbon structures. Raman spectra confirmed the formation of the graphitic nature of the carbon materials.These results highlight the potential use of Au@carbon coreshell structures for the generation of few layered graphene-like unusual nanostructures. As a proof of concept, the wormlike carbon structures were incorporated in organic solar cells and found to give a measurable photovoltaic response.

show abstract

“…24,25 In addition, unlike the zero-band gap graphene, laddertype conjugated oligomers (LCOs) with different band gaps show an outstanding semiconducting nature and are fit to be applied in manifold electronic devices as the active materials. [33][34][35] K. Müllen's group 36,37 and W. R. Dichtel's group 38 have both employed an efficient way to prepare well defined polycyclic aromatic hydrocarbons by the Scholl oxidative cyclodehydrogenation reaction, in which a precursor for a potential graphene-like molecule is oxidized by an iron(III) chloride (FeCl 3 )-nitromethane system. [29][30][31][32] Compared with physical methods, chemical synthesis could precisely control the structure to give the desired shape and dimension of the achieved products.…”

Section: Introductionmentioning

confidence: 99%

Ladder-type conjugated oligomers prepared by the Scholl oxidative cyclodehydrogenation reaction: synthesis, characterization and application in field effect transistors

Huang

Zhang

et al. 2015

J. Mater. Chem. C

View full text Add to dashboard Cite

Two novel well defined ladder-type conjugated oligomers have been successfully designed and synthesized through a solution processing method in an excellent yield. The field effect transistors (FETs) fabricated by these ladder-type oligomers with a nice planar structure exhibit excellent charge carrier mobilities, up to 0.10 cm 2 V À1 s À1 and 0.33 cm 2 V À1 s À1 ; furthermore, the devices can work well with a low gate voltage. The ladder-type oligomers are both converted from two precursor co-oligomers, poly(2,7-(1,2,-diphenylethene)-9,9-dioctylfluorene) (PDPF), via an anhydrous FeCl 3 oxidative cyclodehydrogenation. The pronounced red shift shown in the preliminary photoluminescence spectra and the changes of band gaps measured by electrochemical analysis both testify that the better electronic transmission capacity in the FET performance is due to the expanded molecular chain planarization after the chemical cyclodehydrogenation. Interestingly, the precursor oligomers having a linear-type chain and a zigzag-type chain (L-PDPF and Z-PDPF, respectively) show many characteristic differences in their thermal, optical and electrochemical properties.The differences caused by the different types of main chains demonstrate that the macromolecular configurations have a tremendous impact on the functioning of the oligomers.

show abstract

Bottom-Up Synthesis of Liquid-Phase-Processable Graphene Nanoribbons with Near-Infrared Absorption

Cited by 144 publications

References 53 publications

Broad Family of Carbon Nanoallotropes: Classification, Chemistry, and Applications of Fullerenes, Carbon Dots, Nanotubes, Graphene, Nanodiamonds, and Combined Superstructures

Broad Family of Carbon Nanoallotropes: Classification, Chemistry, and Applications of Fullerenes, Carbon Dots, Nanotubes, Graphene, Nanodiamonds, and Combined Superstructures

Generation of open-ended, worm-like and graphene-like structures from layered spherical carbon materials

Ladder-type conjugated oligomers prepared by the Scholl oxidative cyclodehydrogenation reaction: synthesis, characterization and application in field effect transistors

Contact Info

Product

Resources

About