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Continuous and ultrathin platinum films on graphene …

The focus is on the Pt ALD on graphene, as this hybrid system is very promising for solar and fuel cells, hydrogen technologies, microreactors, and sensors. Here we elucidate the surface reactions underpinning the nucleation stage of Pt ALD on pristine, defective and functionalized graphenes. The employed reaction mechanism clearly depends on ...

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ALD Coating for Anode, Cathode Materials | Targray

2021-1-4 · ALD coated cathode and anode materials deliver superior performance when compared to materials coated through conventional processes. This is largely due to the unparalleled uniformity, scalability, precision and low-cost of atomic layer deposition technology.

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ALD Alumina‐Mediated Graphene Transfer for …

Uniform ultrathin ALD coating on PTCA graphene was achieved over a large area. The functionalization method could be used to integrate ultrathin high-kappa dielectrics in future graphene electronics.

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ALD Alumina‐Mediated Graphene Transfer for …

Uniform ultrathin ALD coating on PTCA graphene was achieved over a large area. The functionalization method could be used to integrate ultrathin high-kappa dielectrics in future graphene electronics.

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Graphene Sensors and their Properties and Benefits

Graphene-based top-gate insulators can be fabricated as thin as 1 to 5 nm in an electrolyte, with a concentration of several millimolar. Even the best, top-gate graphene field-effect transistors (FETs) with atomic layer deposition (ALD) do not match these levels.

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Synthesis of two-dimensional MoS2/graphene …

In this study, by using atomic layer deposition (ALD), 2D transition metal dichalcogenide (TMD) heterostructures were grown by a halide precursor. This study shows the growth characteristics of the fluoride precursor compared to the chloride precursor used for the synthesis of the TMD on the graphene layer and the other TMD layer.

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Picosun | Graphene-Info

2021-1-3 · Picosun, based in Espoo Finland, was established in 2004 to develop Atomic Layer Deposition (ALD) reactors for micro- and nanotechnology applications. The company is developing ALD-based graphene deposition using its advanced PEALD (plasma-enhanced ALD) system.

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High energy density supercapacitor based on N/B co …

2019-4-13 · Boron-nitrogen co-doped graphene nanoarchitectures were synthesized by annealing a freeze-dried precursor containing exfoliated graphene oxide (GO) nanosheets, ammonium borate, and polyvinyl alcohol (PVA). The microstructures and composition of nanocomposites were optimized and characterized systemically. Effects of a doping element on the electrochemical performances and …

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Graphene Sensors and their Properties and Benefits

Graphene-based top-gate insulators can be fabricated as thin as 1 to 5 nm in an electrolyte, with a concentration of several millimolar. Even the best, top-gate graphene field-effect transistors (FETs) with atomic layer deposition (ALD) do not match these levels.

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Uniform Atomic Layer Deposition of Al 2 O 3 on …

ALD on pristine graphene is known to be a challenge due to the absence of dangling bonds, leading to nonuniform film coverage. We show that hydrogen plasma functionalization of graphene leads to uniform ALD of closed Al 2 O 3 films down to 8 nm in thickness.

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Uniform Atomic Layer Deposition of Al 2 O 3 on …

ALD on pristine graphene is known to be a challenge due to the absence of dangling bonds, leading to nonuniform film coverage. We show that hydrogen plasma functionalization of graphene leads to uniform ALD of closed Al 2 O 3 films down to 8 nm in thickness.

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Development of an ALD-Pt@SWCNT/Graphene 3D …

2020-11-17 · The ALD-Pt further enhances the H2 responsivity of the 3D ALD-Pt @SWCNT/graphene nanohybrids. By coating 10 cycles of ALD-Pt on the SWCNT/graphene nanohybrid, the H2 response (2.77%) is approximately twice that (1.4%) of its counterpart without the ALD-Pt.

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Van der Waals Integrated Silicon/Graphene/AlGaN …

Silicon-based light emitting diodes (LED) are indispensable elements for the rapidly growing field of silicon compatible photonic integration platforms. In the present study, graphene has been utilized as an interfacial layer to realize a unique illumination mechanism for the silicon-based LEDs. We designed a Si/thick dielectric layer/graphene/AlGaN heterostructured LED via the van der Waals ...