A5086152815- Advancements in Battery Materials
- Transition Metal Oxide Nanomaterials
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- Semiconductor materials and interfaces
- Anodic Oxide Films and Nanostructures
- Photonic Crystals and Applications
- Supercapacitor Materials and Fabrication
- ZnO doping and properties
- Advanced Battery Materials and Technologies
- Nanowire Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Advanced Battery Technologies Research
- Ga2O3 and related materials
- Molecular Junctions and Nanostructures
- Photonic and Optical Devices
- Thin-Film Transistor Technologies
- Optical Coatings and Gratings
- Gas Sensing Nanomaterials and Sensors
- GaN-based semiconductor devices and materials
- Conducting polymers and applications
- 2D Materials and Applications
- Copper-based nanomaterials and applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Thermoelectric Materials and Devices
University College Cork
2016-2025
Advanced Materials and BioEngineering Research
2020-2025
Trinity College Dublin
2019-2025
National University of Ireland
2013-2024
International Energy Research Centre
2015-2023
Tyndall Centre
2005-2019
Union County College
2019
Micron (United States)
2018
National Microelectronics Applications Centre (Ireland)
2012-2015
Institute of Microelectronics
2015
Here we report the formation of high-performance and high-capacity lithium-ion battery anodes from high-density germanium nanowire arrays grown directly current collector. The retain capacities ∼ 900 mAh/g after 1100 cycles with excellent rate performance characteristics, even at very high discharge rates 20-100C. We show by an ex situ high-resolution transmission electron microscopy scanning study that this can be attributed to complete restructuring nanowires occurs within first 100 form a...
Abstract Colloidal semiconductor nanocrystals are promising luminophores for creating a new generation of electroluminescence devices. Research on nanocrystal based light‐emitting diodes (LEDs) has made remarkable advances in just one decade: the external quantum efficiency improved by over two orders magnitude and highly saturated color emission is now norm. Although device efficiencies still more than an order lower those purely organic LEDs there potential advantages associated with...
This review outlines the fundamentals and applications of artificial opal photonic crystals, their fabrication, development adaption from optics to energy storage research.
Advancements and progress in computational theoretical investigations of Li-ion battery materials electrolytes are reviewed assessed.
A binder-free cobalt phosphate hydrate (Co3(PO4)2·8H2O) multilayer nano/microflake structure is synthesized on nickel foam (NF) via a facile hydrothermal process. Four different concentrations (2.5, 5, 10, and 20 mM) of Co2+ PO4–3 were used to obtain mass loading the foam. The Co3(PO4)2·8H2O modified NF electrode (2.5 shows maximum specific capacity 868.3 C g–1 (capacitance 1578.7 F g–1) at current density 5 mA cm–2 remains as high 566.3 (1029.5 50 in 1 M NaOH. supercapattery assembled using...
This review outlines the developments in structure, composition, size, and shape control of many important emerging Li-ion battery materials on length scales, details very recent investigations how assembly programmable order energy storage have not only influenced dramatically improved performance some batteries, but offered new routes toward power densities. also describes discusses material aspects hybrid multiphasic including silicon, germanium, a wide range metal oxides, alloys crystal...
Rechargeable Li-air (henceforth referred to as Li-O2) batteries provide theoretical capacities that are ten times higher than of current Li-ion batteries, which could enable the driving range an electric vehicle be comparable gasoline vehicles. These high energy densities in Li-O2 result from atypical battery architecture consists air (O2) cathode and a pure lithium metal anode. However, hurdles their widespread use abound with issues at (relating electrocatalysis decomposition), anode (high...
Abstract The shape sensitivity of Pd catalysts in Suzuki–Miyaura coupling reactions is studied using nanocrystals enclosed by well‐defined surface facets. catalytic performance with cubic, cuboctahedral and octahedral morphologies are compared. Superior reactivity observed for NCs {100} facets compared to {111} origin the enhanced associated a cubic morphology related leaching susceptibility nanocrystals. Molecular oxygen plays key role facilitating atoms from interaction O 2 itself...
Simultaneous heterogeneous growth of one-dimensional nanorod supported three-dimensional microflower structures on nickel foam enhanced the non-capacitive faradaic energy storage performance due to synergistic contribution from hierarchical hybrid nanostructure.
Rutile TiO 2 inverse opals provide long cycle life and impressive structural stability when tested as anode materials for Li‐ion batteries. The capacity retention of (IOs) is greater than previously reported values other rutile nanomaterials, the cycled crystalline phase material interconnectivity maintained over thousands cycles. Consequently, this paper offers insight into importance optimizing relationship between structure morphology on improving electrochemical performance abundant low...
Since the isolation of two-dimensional (2D) phosphorene, black phosphorus (BP) has gained popularity due to its high carrier mobility and tunable bandgap. Poor ambient stability BP remains a key issue impedes use in electronic applications. Here we report new stabilization strategy based on covalent functionalization liquid exfoliated few-layer using aryl iodonium salts. Arylation salts enables modification without inducing oxidation alters degradation chemistry by inhibiting bridged oxygen...
The supercapattery is an ideal energy storage device that combines excellent power density and rate capability of supercapacitors the greater batteries. With superior capacity long life, this can be employed in next-generation artificial cardiac pacemakers as a rechargeable source for lifetime pacemaker (at least 15–20 years). However, current hybrid devices are often limited by less than performance either supercapacitor or battery. Here, we develop low cost scalable prototype with cobalt...
While it is well-known that the electronic conductivity of electrodes has a critical impact on rate performance in batteries, this relationship been quantified only by computer simulations. Here we investigate between electrode and model cathode system lithium–nickel–manganese–cobalt–oxide (NMC) filled with various quantities carbon black, single-walled nanotubes, graphene. We find extreme anisotropy significant differences dependence mass fraction among different fillers. Fitting capacity...
This perspective reviews recent advances in inverse opal structures, how they have been developed, studied and applied as catalysts, catalyst support materials, electrode materials for batteries, water splitting applications, solar-to-fuel conversion electrochromics, finally photonic photocatalysts photoelectrocatalysts. Throughout, we detail some of the salient optical characteristics that underpin results form basis light-matter interactions span electrochemical energy systems well...
A comprehensive review of recent advances in solution processing and growth metal‐oxide thin films for electronic photonic devices is presented, with specific focus on precise solution‐based technological coatings electronics optics, new concepts oxide material electrochemical, catalytic, energy storage conversion systems, information technology, semiconductor device related devices. Throughout, the nature soluble precursors solutions their relationship to film formation process by various...
Additive manufacturing and 3D printing in particular have the potential to revolutionize existing fabrication processes, where objects with complex structures shapes can be built multifunctional material systems. For electrochemical energy storage devices such as batteries supercapacitors, methods allows alternative form factors conceived based on end use application need mind at design stage. Additively manufactured require active materials composites that are printable, this is influenced...