Synthesis of double core chromophore-functionalized nanothreads by compressing azobenzene in a diamond anvil cell

Romi, Sebastiano; Fanetti, Samuele; Alabarse, Frederico; Mio, Antonio Massimiliano; Bini, Roberto

doi:10.1039/d0sc06968j

Cited by 23 publications

(65 citation statements)

References 57 publications

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“…This band is characteristic of the CH wagging mode of trans -dialkyl ethylene groups, 55 thus providing evidence of the ethylenic group preservation in the final product in perfect agreement to that observed in azobenzene. 35…”

Section: Resultsmentioning

confidence: 99%

Towards custom built double core carbon nanothreads using stilbene and pseudo-stilbene type systems

Romi¹,

Fanetti

Alabarse

et al. 2022

Nanoscale

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Section: Resultsmentioning

confidence: 99%

Towards custom built double core carbon nanothreads using stilbene and pseudo-stilbene type systems

Romi¹,

Fanetti

Alabarse

et al. 2022

Nanoscale

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“…These polymers, theorized to form through a series of [4 + 2] cycloadditions, 17,18 have been reported from several monomers, including pyridine, 19,20 furan, 21,22 thiophene, 23 aniline, 24 and azobenzene. 25 Notably, the compression of benzene had been performed for decades prior to nanothread discovery, but primarily lead to amorphous carbon as a result of multiple kinetically favorable reaction pathways opening upon quick collapse of the crystal. 26–29 Upon the discovery of a concise method to reproducibly form nanothreads from benzene requiring slow compression, 15,16 interest in these polymer threads has been fueled by their potential use as high tensile strength materials, 30,31 along with possible applications envisioned as novel semiconductors 32 or catalyst-anchoring platforms, with highly sensitive properties dependent on monomer composition.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic insights into the pressure-induced polymerization of aryl/perfluoroaryl co-crystals

Gerthoffer

et al. 2022

Polym. Chem.

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“…Recently, GDs functionalized in AZO-polymer complexes have been explored for producing a moiety capable of photo-modulation and solar thermal storage [ 22 , 23 , 24 , 25 ]. Two-dimensional structures of GDs are an excellent platform for assembling close packed order AZO molecules.…”

Section: Introductionmentioning

confidence: 99%

“…Figure24. TEM images of (a) GO and (b) PVK-AZO-GO (Reprinted with permission from[107]; Copyright @ 2018 Elsevier).…”

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confidence: 99%

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

2021

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Graphene represents a new generation of materials which exhibit unique physicochemical properties such as high electron mobility, tunable optics, a large surface to volume ratio, and robust mechanical strength. These properties make graphene an ideal candidate for various optoelectronic, photonics, and sensing applications. In recent years, numerous efforts have been focused on azobenzene polymers (AZO-polymers) as photochromic molecular switches and thermal sensors because of their light-induced conformations and surface-relief structures. However, these polymers often exhibit drawbacks such as low photon storage lifetime and energy density. Additionally, AZO-polymers tend to aggregate even at moderate doping levels, which is detrimental to their optical response. These issues can be alleviated by incorporating graphene derivatives (GDs) into AZO-polymers to form orderly arranged molecules. GDs such as graphene oxide (GO), reduced graphene oxide (RGO), and graphene quantum dots (GQDs) can modulate the optical response, energy density, and photon storage capacity of these composites. Moreover, they have the potential to prevent aggregation and increase the mechanical strength of the azobenzene complexes. This review article summarizes and assesses literature on various strategies that may be used to incorporate GDs into azobenzene complexes. The review begins with a detailed analysis of structures and properties of GDs and azobenzene complexes. Then, important aspects of GD-azobenzene composites are discussed, including: (1) synthesis methods for GD-azobenzene composites, (2) structure and physicochemical properties of GD-azobenzene composites, (3) characterization techniques employed to analyze GD-azobenzene composites, and most importantly, (4) applications of these composites in various photonics and thermal devices. Finally, a conclusion and future scope are given to discuss remaining challenges facing GD-azobenzene composites in functional science engineering.

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Synthesis of double core chromophore-functionalized nanothreads by compressing azobenzene in a diamond anvil cell

Abstract: Carbon nanothreads are likely the most attracting new materials produced under high pressure conditions. Their synthesis is achieved by compressing crystals of different small aromatic molecules also exploiting the applied...

Cited by 23 publications

References 57 publications

Towards custom built double core carbon nanothreads using stilbene and pseudo-stilbene type systems

Towards custom built double core carbon nanothreads using stilbene and pseudo-stilbene type systems

Mechanistic insights into the pressure-induced polymerization of aryl/perfluoroaryl co-crystals

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

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