Nanoscale resistive switching memory device composed of NiO nanodot and graphene nanoribbon nanogap electrodes

Kim, Woo‐Hee; Park, Chang Soo; Son, Jong Yeog

doi:10.1016/j.carbon.2014.07.081

Cited by 36 publications

(19 citation statements)

References 23 publications

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“…[2][3][4][5][6][7][8][9][10][11][12][13] Combining all these unique properties within a 2D covalent network renders graphene an ideal candidate not only for a wide range of potential applications in the next generation of electronic devices but also in other fields ranging from biosensors to energy storage systems. [14][15][16][17][18][19][20] However, in general the practical applications of graphene are largely restricted by its inherent zero bandgap and weak chemical activity. [21][22] To address these issues, the surface and microstructure of graphene sheet need to be modified to tailor its inherent physical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Graphene Patterning

et al. 2020

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As an emerging field of research, graphene patterning has received considerable attention because of its ability to tailor the structure of graphene and the respective properties, aiming at practical applications such as electronic devices, catalysts, and sensors. Recent efforts in this field have led to the development of a variety of different approaches to pattern graphene sheets, providing a multitude of graphene patterns with different shapes and sizes. These established patterning techniques in combination with graphene chemistry have paved the road towards highly attractive chemical patterning approaches, establishing a very promising and vigorously developing research topic. In this review, an overview of commonly used strategies is presented that are categorized into top‐down and bottom‐up routes for graphene patterning, focusing mainly on new advances. Other than the introduction of basic concepts of each method, the advantages/disadvantages are compared as well. In addition, for the first time, an overview of chemical patterning techniques is outlined. At the end, the challenges and future perspectives in the field are envisioned.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Graphene Patterning

et al. 2020

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“…[11,12] As aT MO, nickel oxide (NiO) is nontoxic, abundant, and cost-effective; has physical andc hemicals tability and distinct electrocatalytic activity;a nd has been used in diversea pplications,i ncluding energy-storage devices, sensors, catalysts, optoelectronic devices, and resistive random-access memory (RRAM)d evices. [13][14][15][16][17][18] However,N iO electrodes suffer from relativelyp oor electricalc onductivity andalarge specific volume change during the cycling process. [19] The hybridizationo fv ariousm aterials with different properties could be an efficient approach to alleviate the abovementioned problems; thus, recent research has shownt hat the adulteration of graphene or graph-ene derivatives could significantly enhancet he electrochemical performance of NiO.…”

Section: Introductionmentioning

confidence: 99%

Nickel Oxide/Graphene Composites: Synthesis and Applications

Liu

Gao

et al. 2018

Chemistry A European J

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Nickel oxide (NiO) has emerged as one of the most promising transition-metal oxides (TMOs) for electrochemical capacitors, batteries, catalysis, and electrochromic films, owing to its cost-effectiveness, abundance, and well-defined electrochemical properties. Recent studies have identified that mixing NiO with graphene or graphene derivatives results in novel composites with synergistic effects and superior electrochemical performance. This review summarizes the latest advances in composites of NiO with graphene or graphene derivatives. The synthetic strategies, morphologies, and electrochemical performance of these composites are introduced, as well as their electrochemical applications in supercapacitors, batteries, sensors, catalysis, and so forth. Finally, tentative conclusions and assessments regarding the opportunities and challenges for the future development of these composites and other TMOs/graphene or graphene-derived composites are presented.

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“…For instance, phase change materials can be introduced in the nanogap to make electronic switches . Because the nanogaps can be a few nanometers wide, single molecules can also be inserted to make transistors, DNA sequencers or quantum dots hence making graphene nanogap systems extremely important in the field of molecular electronics.…”

Section: Introductionmentioning

confidence: 99%

Controlled, Low‐Temperature Nanogap Propagation in Graphene Using Femtosecond Laser Patterning

Maurice

Bodelot

Tay

et al. 2018

Small

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Graphene nanogap systems are promising research tools for molecular electronics, memories, and nanodevices. Here, a way to control the propagation of nanogaps in monolayer graphene during electroburning is demonstrated. A tightly focused femtosecond laser beam is used to induce defects in graphene according to selected patterns. It is shown that, contrary to the pristine graphene devices where nanogap position and shape are uncontrolled, the nanogaps in prepatterned devices propagate along the defect line created by the femtosecond laser. Using passive voltage contrast combined with atomic force microscopy, the reproducibility of the process with a 92% success rate over 26 devices is confirmed. Coupling in situ infrared thermography and finite element analysis yields a real-time estimation of the device temperature during electrical loading. The controlled nanogap formation occurs well below 50 °C when the defect density is high enough. In the perspective of graphene-based circuit fabrication, the availability of a cold electroburning process is critical to preserve the full circuit from thermal damage.

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Nanoscale resistive switching memory device composed of NiO nanodot and graphene nanoribbon nanogap electrodes

Cited by 36 publications

References 23 publications

Recent Advances in Graphene Patterning

Recent Advances in Graphene Patterning

Nickel Oxide/Graphene Composites: Synthesis and Applications

Controlled, Low‐Temperature Nanogap Propagation in Graphene Using Femtosecond Laser Patterning

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