Photo-switchable molecular monolayer anchored between highly transparent and flexible graphene electrodes

Seo, Sohyeon; Min, Mi‐Sook; Lee, Sae Mi; Lee, Hyoyoung

doi:10.1038/ncomms2937

Cited by 127 publications

(90 citation statements)

References 26 publications

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“…Diazonium salt chemistry has proved its efficiency in the improvement of the electrocatalytic properties of carbon-based nanomaterials, including graphene, via the covalent grafting of a porphyrin cobalt complex (Cobalt[tetrakis(o-aminophenyl)porphyrin]) (CoTAPP)[130]. The intercalation of aryls derived from diazonium salts between two graphene electrodes has led Seo et al[131] to design a photoswitchable molecular monolayer anchored between highly flexible and transparent graphene electrodes.Degupta et al[132] attached a thiol-terminated diazonium salt onto reduced graphene oxide (RGO) sheet surface in order to anchor CdSe quantum dots (QDs) resulting in RGO-QDs hybrid structures with enhanced optical properties. Modification of GO using 2-aminoanthracene derived from a diazonium salt has led Lu et al[133] to fabricate graphene composite with a blue emission.…”

mentioning

confidence: 99%

Functionalization of nanomaterials with aryldiazonium salts

Mohamed

Salmi

Dahoumane

et al. 2015

Advances in Colloid and Interface Science

166

137

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mentioning

confidence: 99%

Functionalization of nanomaterials with aryldiazonium salts

Mohamed

Salmi

Dahoumane

et al. 2015

Advances in Colloid and Interface Science

166

137

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“…Metalfree junctions where both electrodes are non-metallic are highly desirable for such applications. These are some of the reasons why recently some world-leading researchers are suggesting a further effort towards the investigation of all-carbon based molecular electronic devices [110][111][112], following the roadmap already defined by organic electronics. Figure 3 indicates the research time line and market implementation followed by organic electronics and our vision of how molecular electronics research might evolve in the following years.…”

Section: Self-assembled Monolayers Onto Semiconductors or Non-metallimentioning

confidence: 98%

Nanofabrication techniques of highly organized monolayers sandwiched between two electrodes for molecular electronics

2014

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Molecular electronics [1,2] is a promising field of research based on the idea that a single molecule or two dimensional assemblies of molecules (monomolecular films) can work as wires, switches, rectifiers, etc. Molecules are the smallest functional units and therefore it is expected that the use of molecules will permit to catch up with the limits of miniaturization (MM: more Moore), with an increase in device density by a factor of several orders of magnitude compared to today's state of the art. At the same time due to quantum effects novel and remarkable properties of organic and organometallic compounds at the nanoscale devices will result in increased performance (MtM: more than Moore) together with the appearance of new functions not possible with conventional semiconductors, and also cheaper devices due to the non-dependence of expensive materials used today in CMOS (complementary metal-oxide semiconductor) technology such as hafnium oxide. Nowadays, the number of research groups from different disciplines of science contributing to molecular electronics is gradually growing, and this field is becoming of great scientific and technological interest [1,3-8]. Since the seminal work of Aviram and Ratner in 1974 who firstly suggested that a single molecule could function as a rectifier [9], molecules have been experimentally demonstrated to work as switches, molecular wires or rectifiers, and a new field of opportunities is opened due to the understanding of electron transport through single entities or assemblies of molecules and expansion towards work on molecular spintronics, vibronic effects, excitation of the molecular junction with polarized light, quantum interference and decoherence, molecular chirality, molecular stretching and distortion as well as work on thermoelectric response in molecular junctions.Abstract: It is expected that molecular electronics, i.e., the use of molecules as critical functional elements in electronic devices, will lead in the near future to an industrial exploitable novel technology, which will open new routes to high value-added electronic products. However, despite the enormous advances in this field several scientific and technological challenges should be surmounted before molecular electronics can be implemented in the market. Among these challenges are the fabrication of reliable, robust and uniform contacts between molecules and electrodes, the deposition of the second (top) contact electrode, and development of assembly strategies for precise placement of molecular materials within device structures. This review covers advances in nanofabrication techniques used for the assembly of monomolecular films onto conducting or semiconducting substrates as well as recent methods developed for the deposition of the top contact electrode highlighting the advantages and limitations of the several approaches used in the literature. This contribution also aims to define areas of outstanding challenges in the nanofabrication of monomolecular layers sandwiched between two electro...

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“…Combining the advantages of graphene as an optically transparent, mechanically flexible, and chemically stable electrode with the photoactivity of molecular switches, all-carbon MJs have been prepared using graphene bottom and top contacts, with azobenzene-based molecular layers of 1.5-2 nm thickness ( Figure 10.8c-d) [107]. Here, azobenzene was used to derivatize graphene using diazonium chemistry to allow covalent anchoring to the bottom graphene contact, with the top graphene layer contacted noncovalently.…”

Section: Graphene In Molecular Electronicsmentioning

confidence: 99%