| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Weatherup, Rs
University of Oxford
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024The Role of Salt Concentration in Stabilizing Charged Ni-Rich Cathode Interfaces in Li-ion Batteries
- 2024Removal and Reoccurrence of LLZTO Surface Contaminants under Glovebox Conditionscitations
- 2023Effect of current density on the solid electrolyte interphase formation at the lithium∣Li6PS5Cl interfacecitations
- 2022Gently does it!: in situ preparation of alkali metal–solid electrolyte interfaces for photoelectron spectroscopycitations
- 2022Effect of current density on the solid electrolyte interphase formation at the lithium∣Li6PS5Cl interfacecitations
- 2022In situ and operando characterisation of Li metal – Solid electrolyte interfacescitations
- 2022Electrolyte reactivity at the charged Ni-rich cathode interface and degradation in Li-ion batteriescitations
- 2022Electrolyte Reactivity at the Charged Ni-Rich Cathode Interface and Degradation in Li-Ion Batteries.
- 2022Electronic interactions and stability issues at the copper-graphene interface in air and in alkaline solution under electrochemical controlcitations
- 2020Understanding metal organic chemical vapour deposition of monolayer WS2: the enhancing role of au substrate for simple organosulfur precursorscitations
- 2020The origin of chemical inhomogeneity in garnet electrolytes and its impact on the electrochemical performancecitations
- 2020Graphene-passivated nickel as an efficient hole-injecting electrode for large area organic semiconductor devicescitations
- 2020Understanding metal organic chemical vapour deposition of monolayer WS<sub>2</sub>: the enhancing role of Au substrate for simple organosulfur precursors.
- 2019Reactive intercalation and oxidation at the buried graphene-germanium interface
- 2018Compressive Behavior and Failure Mechanisms of Freestanding and Composite 3D Graphitic Foamscitations
- 2018Insulator-to-Metallic Spin-Filtering in 2D-Magnetic Tunnel Junctions Based on Hexagonal Boron Nitridecitations
- 2017Chemical vapour deposition of freestanding sub-60 nm graphene gyroidscitations
- 2017Low temperature growth of fully covered single-layer graphene using a CoCu catalystcitations
- 2016In Situ Observations of Phase Transitions in Metastable Nickel (Carbide)/Carbon Nanocompositescitations
- 2016In Situ Graphene Growth Dynamics on Polycrystalline Catalyst Foilscitations
- 2016Time Evolution of the Wettability of Supported Graphene under Ambient Air Exposurecitations
- 2015Protecting nickel with graphene spin-filtering membranescitations
- 2015Spatial variability in large area single and few-layer CVD graphene
- 2014The role of the sp2:sp3 substrate content in carbon supported nanotube growthcitations
- 2014The influence of intercalated oxygen on the properties of graphene on polycrystalline Cu under various environmental conditionscitations
- 2014Low temperature growth of carbon nanotubes on tetrahedral amorphous carbon using Fe-Cu catalystcitations
- 2014Nitrogen controlled iron catalyst phase during carbon nanotube growthcitations
- 2012The phase of iron catalyst nanoparticles during carbon nanotube growthcitations
Places of action
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article
Graphene-passivated nickel as an efficient hole-injecting electrode for large area organic semiconductor devices
Abstract
Efficient injection of charge from metal electrodes into semiconductors is of paramount importance to obtain high performance optoelectronic devices. The quality of the interface between the electrode and the semiconductor must therefore be carefully controlled. The case of organic semiconductors presents specific problems: ambient deposition techniques, such as solution processing, restrict the choice of electrodes to those not prone to oxidation, limiting potential application. Additionally, damage to the semiconductor in sputter coating or high temperature thermal evaporation poses an obstacle to the use of many device-relevant metals as top electrodes in vertical metal-semiconductor-metal structures, making it preferable to use them as bottom electrodes. Here we propose a possible solution to these problems by implementing graphene-passivated nickel as an air stable bottom electrode in vertical devices comprising organic semiconductors. We use these passivated layers as hole-injecting bottom electrodes and we show that efficient charge injection can be achieved into standard organic semiconducting polymers, owing to an oxide free nickel/graphene/polymer interface. Crucially, we fabricate our electrodes with low roughness, which in turn allows us to produce large area devices (of the order of millimetre squares) without electrical shorts occurring. Our results make these graphene-passivated ferromagnetic electrodes a promising approach for large area organic optoelectronic and spintronic devices.