Preparation of Weavable, All‐Carbon Fibers for Non‐Volatile Memory Devices

Sun, Gengzhi; Liu, Juqing; Zheng, Lianxi; Huang, Wei; Zhang, Hua

doi:10.1002/ange.201306770

Cited by 32 publications

(11 citation statements)

References 42 publications

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“…The formed GO film was crackless with some wrinkles (Fig. S6) like the common graphen-based film3651. The g-C 3 N 4 -NSs film was formed on GO layer through the sprayed fog of g-C 3 N 4 -NSs aqueous solution in virtue of a commercial humidifier (step 4).…”

Section: Resultsmentioning

confidence: 97%

Functionalized Graphitic Carbon Nitride for Metal-free, Flexible and Rewritable Nonvolatile Memory Device via Direct Laser-Writing

Zhao

Cheng

et al. 2014

Sci Rep

104

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Graphitic carbon nitride nanosheet (g-C3N4-NS) has layered structure similar with graphene nanosheet and presents unusual physicochemical properties due to the s-triazine fragments. But their electronic and electrochemical applications are limited by the relatively poor conductivity. The current work provides the first example that atomically thick g-C3N4-NSs are the ideal candidate as the active insulator layer with tunable conductivity for achieving the high performance memory devices with electrical bistability. Unlike in conventional memory diodes, the g-C3N4-NSs based devices combined with graphene layer electrodes are flexible, metal-free and low cost. The functionalized g-C3N4-NSs exhibit desirable dispersibility and dielectricity which support the all-solution fabrication and high performance of the memory diodes. Moreover, the flexible memory diodes are conveniently fabricated through the fast laser writing process on graphene oxide/g-C3N4-NSs/graphene oxide thin film. The obtained devices not only have the nonvolatile electrical bistability with great retention and endurance, but also show the rewritable memory effect with a reliable ON/OFF ratio of up to 105, which is the highest among all the metal-free flexible memory diodes reported so far, and even higher than those of metal-containing devices.

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Section: Resultsmentioning

confidence: 97%

Functionalized Graphitic Carbon Nitride for Metal-free, Flexible and Rewritable Nonvolatile Memory Device via Direct Laser-Writing

Zhao

Cheng

et al. 2014

Sci Rep

104

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“…1 In recent years, nanoscaled fibers based motors, generators, 2 solar cells, 3 Li-ion batteries, 4 strain sensors, 5 non-volatile memory, 6 supercapacitors, 7 and fire-resistance conductor 8 that can be woven into smart textiles, have been demonstrated. In contrast to conventional metallic fibers, the fibers fabricated from carbon nanotubes (CNTs), 9 and graphene 10 show advantages in terms of lightweight and flexibility, which are required for portable and wearable device applications.…”

Section: Introductionmentioning

confidence: 99%

Highly Stretchable and Conductive Core–Sheath Chemical Vapor Deposition Graphene Fibers and Their Applications in Safe Strain Sensors

et al. 2015

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Highly stretchable and conductive core-sheath nanofibers are of significance for flexible and wearable microelectronics. Core-sheath fibers were massively fabricated from ultralong chemical vapor deposition (CVD) grown graphene bundles. They exhibited superior conductivity and excellent mechanical properties which exceeded the reduced graphene oxide (rGO) fibers. The intrinsic dynamic fracture procedure and mechanism of the core-sheath nanofibers were investigated. Furthermore, safe strain sensors based on as-prepared core-sheath CVD graphene fibers have been demonstrated as a proof-of-concept application. The performance of strain sensors has been greatly improved by using CVD graphene fiber.

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“…The excellent electrical, mechanical, thermal, and optical properties of one-dimensional (1D) carbon nanotubes (CNTs) provide them a wide range of potential applications [1][2][3]. In the past two decades, considerable attention has been paid to the use of CNTs as building blocks for high performance materials [4][5][6][7]. Due to their outstanding ballistic electronic conduction and insensitivity to electromigration, CNTs are able to withstand current densities up to 10 9 A cm −2 , which is a thousand times greater than that of noble metals [8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Properties of Macroscopic Carbon Nanotube Assemblies Transforming from Aligned Nanotubes

Zhang

Sun

Zheng

2015

Journal of Nanomaterials

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Macroscale assemblies of well-aligned carbon nanotubes (CNTs) can inherit intrinsic properties from individual CNTs and at the same time ease handling difficulties that occur at nanometer scale when dealing with individual CNTs. Herein, simple fabrication processes are introduced to produce a variety of macroscale CNT assemblies, including well-aligned CNT bundles, CNT films, and CNT fibers, from the same starting material: spinnable CNT arrays. The electrical and mechanical properties of the as-prepared CNT assemblies have been investigated and compared. It is found that CNT films show an electrical conductivity of 145~250 S cm−1which is comparable to CNT fibers, but two orders magnitude higher than that of conventional Bucky paper. CNT fibers exhibit diameter dependent tensile strength which is mainly attributed to the nonuniform twisting along the radial direction of fibers.

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Preparation of Weavable, All‐Carbon Fibers for Non‐Volatile Memory Devices

Cited by 32 publications

References 42 publications

Functionalized Graphitic Carbon Nitride for Metal-free, Flexible and Rewritable Nonvolatile Memory Device via Direct Laser-Writing

Functionalized Graphitic Carbon Nitride for Metal-free, Flexible and Rewritable Nonvolatile Memory Device via Direct Laser-Writing

Highly Stretchable and Conductive Core–Sheath Chemical Vapor Deposition Graphene Fibers and Their Applications in Safe Strain Sensors

Fabrication and Properties of Macroscopic Carbon Nanotube Assemblies Transforming from Aligned Nanotubes

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