https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50329 Wed 19 Jul 2023 16:31:12 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:47157 Wed 14 Dec 2022 15:41:58 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38133 -1 cm2 V^-1 s^-1) and significant reduction in solid-state emission quenching compared to pristine CDs; hence, it is used here as an emitting layer in both indium tin oxide (ITO)-coated glass and ITO-coated flexible poly(ethylene terephthalate) (PET) substrate OLED devices, without any hole-injection layer. The flexible OLED device exhibits a stable, voltage-independent blue/cyan emission with a record maximum luminescence of 350 cd m^-2, whereas the OLED device based on the rigid glass substrate shows a maximum luminescence of 700 cd m^-2. This work sets up a platform to develop next-generation OLED displays using CD emitters derived from the biowaste material.]]> Wed 04 Aug 2021 15:14:40 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36678 xN, VO₂, Al, Cu, Al-doped ZnO, and Cu-Al alloys. The relative merits of these choices and the many pitfalls and subtle problems that arise are discussed, and a frank perspective on the field is provided.]]> Tue 23 Jun 2020 14:21:41 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:54127 Tue 06 Feb 2024 11:28:51 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:2495 Sat 24 Mar 2018 08:27:44 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46331 Mon 29 Jan 2024 18:37:54 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51158 Mon 29 Jan 2024 18:36:06 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45543 4 or Fe-N₄ planar configuration. The developed Ni-N₄/GHSs/Fe-N,₄ Janus material exhibits excellent bifunctional electrocatalytic performance, in which the outer Fe-N₄ clusters dominantly contribute to high activity toward the oxygen reduction reaction (ORR), while the inner Ni-N₄ clusters are responsible for excellent activity toward the oxygen evolution reaction (OER). Density functional theory calculations demonstrate the structures and reactivities of Fe-N₄ and Ni-N₄ for the ORR and OER. The Ni-N₄/GHSs/Fe-N₄ endows a rechargeable Zn–air battery with excellent energy efficiency and cycling stability as an air-cathode, outperforming that of the benchmark Pt/C+RuO₂ air-cathode. The current work paves a new avenue for precise control of single-atom sites on carbon surface for the high-performance and selective electrocatalysts.]]> Mon 29 Jan 2024 18:00:27 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48513 12, X₃, and their intermediate phases of borophene; X‐ray photoelectron spectroscopy, and scanning tunneling microscopy, corroborated with density functional theory band structure calculations, validate the phase purity and the metallic nature. Borophene with excellent anchoring capabilities is used for sensing of light, gas, molecules, and strain. Hybrids of borophene as well as that of reduced borophene oxide with other 2D materials are synthesized, and the predicted superior performance in energy storage is explored. The specific capacity of borophene oxide is observed to be ≈4941 mAh g⁻¹, which significantly exceeds that of existing 2D materials and their hybrids. These freestanding borophene materials and their hybrids will create a huge breakthrough in the field of 2D materials and could help to develop future generations of devices and emerging applications.]]> Mon 20 Mar 2023 16:32:14 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46189 Mon 14 Nov 2022 10:48:06 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36540 Mon 01 Jun 2020 12:07:38 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40091 2 photoreduction by coupling macroscopic spontaneous polarization and surface oxygen vacancies (OVs) of BiOIO₃ single crystals is reported. The oriented growth of BiOIO₃ single-crystal nanostrips along the [001] direction, ensuing substantial well-aligned IO₃ polar units, renders a large enhancement for the macroscopic polarization electric field, which is capable of driving the rapid separation and migration of charges from bulk to surface. Meanwhile the introduction of surface OVs establishes a local electric field for charge migration to catalytic sites on the surface of BiOIO₃ nanostrips. Highly polarized BiOIO₃ nanostrips with ample OVs demonstrate outstanding CO₂ reduction activity for CO production with a rate of 17.33 μmol g^-1 h^-1 (approximately ten times enhancement) without any sacrificial agents or cocatalysts, being one of the best CO₂ reduction photocatalysts in the gas-solid system reported so far. This work provides an integrated solution to governing charge movement behavior on the basis of collaborative polarization from bulk and surface.]]> Fri 22 Jul 2022 13:41:21 AEST ]]>