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Encapsulation of copper phenanthroline within horse spleen apoferritin: characterisation, cytotoxic activity and ability to retain temozolomide (2024)
Journal Article
Cassioli, M. L., Fay, M., Turyanska, L., Bradshaw, T. D., Thomas, N. R., & Pordea, A. (2024). Encapsulation of copper phenanthroline within horse spleen apoferritin: characterisation, cytotoxic activity and ability to retain temozolomide. RSC Advances, 14(20), 14008-14016. https://doi.org/10.1039/d3ra07430g

Protein capsules are promising drug delivery vehicles for cancer research therapies. Apoferritin (AFt) is a self-assembling 12 nm diameter hollow nanocage with many desirable features for drug delivery, however, control of drug retention inside the p... Read More about Encapsulation of copper phenanthroline within horse spleen apoferritin: characterisation, cytotoxic activity and ability to retain temozolomide.

Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol (2024)
Journal Article
LeMercier, T. M., Thangamuthu, M., Kohlrausch, E. C., Chen, Y., Stoppiello, C. T., Fay, M. W., …Khlobystov, A. N. (2024). Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol. Sustainable Energy and Fuels, 1691-1703. https://doi.org/10.1039/D4SE00028E

Carbon nitride (C3N4) possesses both a band gap in the visible range and a low-lying conduction band potential, suitable for water splitting and CO2 reduction reactions (CO2RR). Yet, bulk C3N4 (b-C3N4) suffers from structural disorder leading to slug... Read More about Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol.

Sensing the Spin State of Room-Temperature Switchable Cyanometallate Frameworks with Nitrogen-Vacancy Centers in Nanodiamonds (2024)
Journal Article
Flinn, B. T., Rance, G. A., Cull, W. J., Cardillo-Zallo, I., Pitcairn, J., Cliffe, M. J., …Khlobystov, A. N. (2024). Sensing the Spin State of Room-Temperature Switchable Cyanometallate Frameworks with Nitrogen-Vacancy Centers in Nanodiamonds. ACS Nano, 18(9), 7148–7160. https://doi.org/10.1021/acsnano.3c11820

Room-temperature magnetically switchable materials play a vital role in current and upcoming quantum technologies, such as spintronics, molecular switches, and data storage devices. The increasing miniaturization of device architectures produces a ne... Read More about Sensing the Spin State of Room-Temperature Switchable Cyanometallate Frameworks with Nitrogen-Vacancy Centers in Nanodiamonds.

Atomic-Scale Time-Resolved Imaging of Krypton Dimers, Chains and Transition to a One-Dimensional Gas (2024)
Journal Article
Cardillo-Zallo, I., Biskupek, J., Bloodworth, S., Marsden, E. S., Fay, M. W., Ramasse, Q. M., …Khlobystov, A. N. (2024). Atomic-Scale Time-Resolved Imaging of Krypton Dimers, Chains and Transition to a One-Dimensional Gas. ACS Nano, 18(4), 2958–2971. https://doi.org/10.1021/acsnano.3c07853

Single-atom dynamics of noble-gas elements have been investigated using time-resolved transmission electron microscopy (TEM), with direct observation providing for a deeper understanding of chemical bonding, reactivity, and states of matter at the na... Read More about Atomic-Scale Time-Resolved Imaging of Krypton Dimers, Chains and Transition to a One-Dimensional Gas.

Rapid microwave synthesis of sustainable magnetic framework composites of UTSA-16(Zn) with Fe3O4 nanoparticles for efficient CO2 capture (2023)
Journal Article
Woodliffe, J. L., Johnston, A.-L., Fay, M., Ferrari, R., Gomes, R. L., Lester, E., …Laybourn, A. (2023). Rapid microwave synthesis of sustainable magnetic framework composites of UTSA-16(Zn) with Fe3O4 nanoparticles for efficient CO2 capture. Materials Advances, 4(11), 5838-5849. https://doi.org/10.1039/D3MA00351E

Metal-organic frameworks (MOFs) have shown excellent potential for carbon dioxide capture applications due to their high sorption capacities and selectivities. However, MOFs are typically thermally insulating, and so thermal CO2 regeneration is chall... Read More about Rapid microwave synthesis of sustainable magnetic framework composites of UTSA-16(Zn) with Fe3O4 nanoparticles for efficient CO2 capture.

Investigation of Exhaust Particles on Different TEM Grids: a Comparison between Graphene Oxide and Silicon Nitride Grids (2023)
Presentation / Conference Contribution
Lagana, S., Akifjevs, R., Rocca, A. L., Cairns, A., Fay, M. W., & Webb, K. F. (2023). Investigation of Exhaust Particles on Different TEM Grids: a Comparison between Graphene Oxide and Silicon Nitride Grids. SAE Technical Papers, 2023-32-0123, https://doi.org/10.4271/2023-32-0123

Two different TEM (Transmission Electron Microscopy) grids - graphene oxide (GO) and silicon nitride (SiN) - were used to capture the particulates emitted with the exhaust of a modern 1.0 L GDI (Gasoline Direct Injection) engine. One speed-load condi... Read More about Investigation of Exhaust Particles on Different TEM Grids: a Comparison between Graphene Oxide and Silicon Nitride Grids.

Redshift and amplitude increase in the dielectric function of corundum-like α-(TixGa1−x)2O3 (2023)
Journal Article
Kluth, E., Fay, M., Parmenter, C., Roberts, J., Smith, E., Stoppiello, C., …Feneberg, M. (2023). Redshift and amplitude increase in the dielectric function of corundum-like α-(TixGa1−x)2O3. Applied Physics Letters, 122(9), Article 092101. https://doi.org/10.1063/5.0139725

Redshift of the absorption onset and amplitude increase in the ultraviolet complex dielectric function (DF) of corundum-like α-(TixGa1-x)2O3 with increasing Ti content is presented. α-Ga2O3 thin film samples alloyed with Ti up to x = 0.61 are grown f... Read More about Redshift and amplitude increase in the dielectric function of corundum-like α-(TixGa1−x)2O3.

Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response (2022)
Journal Article
Wadge, M. D., Bird, M. A., Sankowski, A., Constantin, H., Fay, M. W., Cooper, T. P., …Grant, D. M. (2023). Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response. Advanced Materials Interfaces, 10(5), Article 2201523. https://doi.org/10.1002/admi.202201523

This study describes the chemical conversion and heat treatment of Ti6Al4V microspheres (Ti6_MS), and the resulting effects on their electrocatalytic properties. The wet-chemical conversion (5.0m NaOH, 60°C, 24h; Sample label: Ti6_TC) converts the to... Read More about Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response.

Highly Aligned Ni-Decorated GO–CNT Nanostructures in Epoxy with Enhanced Thermal and Electrical Properties (2022)
Journal Article
Hu, C., Zhang, H., Neate, N., Fay, M., Hou, X., Grant, D., & Xu, F. (2022). Highly Aligned Ni-Decorated GO–CNT Nanostructures in Epoxy with Enhanced Thermal and Electrical Properties. Polymers, 14(13), Article 2583. https://doi.org/10.3390/polym14132583

In this study, graphene oxide–carbon nanotubes nanostructures decorated with nickel nanoparticles (NiGNT) were prepared through the molecular-level-mixing method, followed by a reduction process, and then applied as reinforcements to enhance the epox... Read More about Highly Aligned Ni-Decorated GO–CNT Nanostructures in Epoxy with Enhanced Thermal and Electrical Properties.

Enhanced thermal and electrical properties by Ag nanoparticles decorated GO-CNT nanostructures in PEEK composites (2021)
Journal Article
Hu, C., Liu, T., Neate, N., Fay, M., Hou, X., Grant, D., & Xu, F. (2022). Enhanced thermal and electrical properties by Ag nanoparticles decorated GO-CNT nanostructures in PEEK composites. Composites Science and Technology, 218, Article 109201. https://doi.org/10.1016/j.compscitech.2021.109201

A nanostructure of graphene oxide (GO) and carbon nanotubes (CNTs) decorated with silver nanoparticles (AgGNT) has been prepared via a molecular-level-mixing (MLM) method followed by a subsequent freeze-drying and reduction process. The obtained well... Read More about Enhanced thermal and electrical properties by Ag nanoparticles decorated GO-CNT nanostructures in PEEK composites.

Etoposide and olaparib polymer-coated nanoparticles within a bioadhesive sprayable hydrogel for post-surgical localised delivery to brain tumours (2020)
Journal Article
McCrorie, P., Mistry, J., Taresco, V., Lovato, T., Fay, M., Ward, I., …Rahman, R. (2020). Etoposide and olaparib polymer-coated nanoparticles within a bioadhesive sprayable hydrogel for post-surgical localised delivery to brain tumours. European Journal of Pharmaceutics and Biopharmaceutics, 157, 108-120. https://doi.org/10.1016/j.ejpb.2020.10.005

Glioblastoma is a malignant brain tumour with a median survival of 14.6 months from diagnosis. Despite maximal surgical resection and concurrent chemoradiotherapy, reoccurrence is inevitable. To try combating the disease at a stage of low residual tu... Read More about Etoposide and olaparib polymer-coated nanoparticles within a bioadhesive sprayable hydrogel for post-surgical localised delivery to brain tumours.

Metabolic characterisation of Magnetospirillum gryphiswaldense MSR-1 using LC-MS-based metabolite profiling (2020)
Journal Article
Abdelrazig, S., Safo, L., Rance, G. A., Fay, M. W., Theodosiou, E., Topham, P. D., …Fernández-Castané, A. (2020). Metabolic characterisation of Magnetospirillum gryphiswaldense MSR-1 using LC-MS-based metabolite profiling. RSC Advances, 10(54), 32548-32560. https://doi.org/10.1039/d0ra05326k

Magnetosomes are nano-sized magnetic nanoparticles with exquisite properties that can be used in a wide range of healthcare and biotechnological applications. They are biosynthesised by magnetotactic bacteria (MTB), such as Magnetospirillum gryphiswa... Read More about Metabolic characterisation of Magnetospirillum gryphiswaldense MSR-1 using LC-MS-based metabolite profiling.

Quantifying soot nanostructures: Importance of image processing parameters for lattice fringe analysis (2019)
Journal Article
Pfau, S. A., La Rocca, A., & Fay, M. W. (2020). Quantifying soot nanostructures: Importance of image processing parameters for lattice fringe analysis. Combustion and Flame, 211, 430-444. https://doi.org/10.1016/j.combustflame.2019.10.020

Fringe analysis is a commonly used method to quantify soot nanostructures. However, the settings of the involved filters and their impact on the results are rarely addressed. In this study, the influence of the three filter parameters as well as two... Read More about Quantifying soot nanostructures: Importance of image processing parameters for lattice fringe analysis.

Immobilized Enzymes on Gold Nanoparticles: From Enhanced Stability to Cleaning of Heritage Textiles (2019)
Journal Article
Gherardi, F., Turyanska, L., Ferrari, E., Weston, N., Fay, M. W., & Colston, B. J. (2019). Immobilized Enzymes on Gold Nanoparticles: From Enhanced Stability to Cleaning of Heritage Textiles. ACS Applied Bio Materials, 2(11), 5136-5143. https://doi.org/10.1021/acsabm.9b00802

Enzyme-based treatments are used in heritage conservation for the effective removal of glues and other damaging organic layers from the surfaces of historic and artistic works. Despite their potential, however, the application of enzymatic treatments... Read More about Immobilized Enzymes on Gold Nanoparticles: From Enhanced Stability to Cleaning of Heritage Textiles.

Steric and electronic control of 1,3-dipolar cycloaddition reactions in carbon nanotube nanoreactors (2019)
Journal Article
Miners, S. A., Fay, M. W., Baldoni, M., Besley, E., Khlobystov, A. N., & Rance, G. A. (2019). Steric and electronic control of 1,3-dipolar cycloaddition reactions in carbon nanotube nanoreactors. Journal of Physical Chemistry C, 123(10), 6294-6302. https://doi.org/10.1021/acs.jpcc.9b01190

The use of single-walled carbon nanotubes as effective nanoreactors for preparative bimolecular reactions has been demonstrated for the first time. We show that the extreme spatial confinement of guest reactant molecules inside host carbon nanotubes... Read More about Steric and electronic control of 1,3-dipolar cycloaddition reactions in carbon nanotube nanoreactors.

Three dimensional nanoscale analysis reveals aperiodic mesopores in a covalent organic framework and conjugated microporous polymer (2019)
Journal Article
Stoppiello, C. T., Isla, H., Martínez-Abadía, M., Fay, M. W., Parmenter, C. D. J., Roe, M. J., …Khlobystov, A. N. (2019). Three dimensional nanoscale analysis reveals aperiodic mesopores in a covalent organic framework and conjugated microporous polymer. Nanoscale, 11(6), 2848-2854. https://doi.org/10.1039/c8nr10086a

The integrated analytical approach developed in this study offers a powerful methodology for the structural characterization of complex molecular nanomaterials. Structures of a covalent organic framework based on boronate esters (COF-5) and a conjuga... Read More about Three dimensional nanoscale analysis reveals aperiodic mesopores in a covalent organic framework and conjugated microporous polymer.

Formation of hollow carbon nanoshells from thiol stabilised silver nanoparticles via heat treatment (2018)
Journal Article
Watts, J. A., Fay, M. W., Rance, G. A., Brown, P. D., & Khlobystov, A. N. (2018). Formation of hollow carbon nanoshells from thiol stabilised silver nanoparticles via heat treatment. Carbon, 139, 538-544. https://doi.org/10.1016/j.carbon.2018.06.074

Uniform, less 10 nm sized, hollow carbon nano-shells (HCNS) have been prepared via a single-step, thermal treatment of alkanethiol stabilised Ag nanoparticles (TS-AgNP). Direct evidence for the formation of spherical HCNS from TS-AgNP is provided by... Read More about Formation of hollow carbon nanoshells from thiol stabilised silver nanoparticles via heat treatment.

Comparative nanostructure analysis of gasoline turbocharged direct injection and diesel soot-in-oil with carbon black (2018)
Journal Article
Pfau, S., La Roca, A., Haffner-Staton, E., Rance, G., Fay, M., Brough, R., & Malizia, S. (2018). Comparative nanostructure analysis of gasoline turbocharged direct injection and diesel soot-in-oil with carbon black. Carbon, 139, 342-352. https://doi.org/10.1016/j.carbon.2018.06.050

Two gasoline turbocharged direct injection (GTDI) and two diesel soot-in-oil samples were compared with one flame-generated soot sample. High resolution transmission electron microscopy imaging was employed for the initial qualitative assessment of t... Read More about Comparative nanostructure analysis of gasoline turbocharged direct injection and diesel soot-in-oil with carbon black.

Morphological Characterisation of Diesel Soot in Oil and the Associated Extraction Dependence (2018)
Presentation / Conference Contribution
Key, S., La Rocca, A., Fay, M., Rance, G., & Growney , D. (2018). Morphological Characterisation of Diesel Soot in Oil and the Associated Extraction Dependence. In SAE Technical Paper. https://doi.org/10.4271/2018-01-0935

The size and morphology of soot particles and agglomerates extracted from lubricating oil drawn from the sump of a diesel engine have been investigated and compared using Transmission Electron Microscopy (TEM) and Nanoparticle Tracking Analysis (NTA)... Read More about Morphological Characterisation of Diesel Soot in Oil and the Associated Extraction Dependence.

Progress towards a methodology for high throughput 3D reconstruction of soot nanoparticles via electron tomography (2018)
Journal Article
Haffner-Staton, E., La Rocca, A., & Fay, M. (2018). Progress towards a methodology for high throughput 3D reconstruction of soot nanoparticles via electron tomography. Journal of Microscopy, 270(3), 272-289. https://doi.org/10.1111/jmi.12680

The aim of this work is to make progress towards the development of 3D reconstruction as a legitimate alternative to traditional 2D characterisation of soot. Time constraints are the greatest opposition to its implementation, as currently reconstruct... Read More about Progress towards a methodology for high throughput 3D reconstruction of soot nanoparticles via electron tomography.

Characterisation of flame-generated soot and soot-in-oil using electron tomography volume reconstructions and comparison with traditional 2D-TEM measurements (2016)
Journal Article
Orhan, O., Haffner-Staton, E., La Rocca, A., & Fay, M. (2016). Characterisation of flame-generated soot and soot-in-oil using electron tomography volume reconstructions and comparison with traditional 2D-TEM measurements. Tribology International, 104, 272-284. https://doi.org/10.1016/j.triboint.2016.09.015

This work characterises soot nanoparticles by electron tomography using Weighted Back Projection algorithm and appraises the uncertainties in two-dimensional calculations by comparison with 3D parameters for flame-generated soot and diesel soot-in-oi... Read More about Characterisation of flame-generated soot and soot-in-oil using electron tomography volume reconstructions and comparison with traditional 2D-TEM measurements.

Making the practically impossible "Merely difficult": cryogenic FIB lift-out for "Damage Free" soft matter imaging (2016)
Journal Article
Parmenter, C., Fay, M., Hartfield, C., & Eltaher, H. (2016). Making the practically impossible "Merely difficult": cryogenic FIB lift-out for "Damage Free" soft matter imaging. Microscopy Research and Technique, 79(4), 298 - 303. https://doi.org/10.1002/jemt.22630

The preparation of thinned lamellae from bulk samples for transmission electron microscopy (TEM) analysis has been possible in the focussed ion beam scanning electron microscope (FIB‐SEM) for over 20 years via the in situ lift‐out method. Lift‐out of... Read More about Making the practically impossible "Merely difficult": cryogenic FIB lift-out for "Damage Free" soft matter imaging.

A sensing mechanism for the detection of carbon nanotubes using selective photoluminescent probes based on ionic complexes with organic dyes (2016)
Journal Article
Lutsyk, P., Arif, R., Hruby, J., Bukivskyi, A., Vinijchuk, O., Shandura, M., …Rozhin, A. (2016). A sensing mechanism for the detection of carbon nanotubes using selective photoluminescent probes based on ionic complexes with organic dyes. Light: Science and Applications, 5, Article e16028. https://doi.org/10.1038/lsa.2016.28

© 2016 CIOMP. All rights reserved. The multifunctional properties of carbon nanotubes (CNTs) make them a powerful platform for unprecedented innovations in a variety of practical applications. As a result of the surging growth of nanotechnology, nano... Read More about A sensing mechanism for the detection of carbon nanotubes using selective photoluminescent probes based on ionic complexes with organic dyes.

Enantiopure titanocene complexes: direct evidence for paraptosis in cancer cells (2016)
Journal Article
Cini, M., Williams, H. E. L., Fay, M. W., Searle, M., Woodward, S., & Bradshaw, T. D. (2016). Enantiopure titanocene complexes: direct evidence for paraptosis in cancer cells. Metallomics, https://doi.org/10.1039/C5MT00297D

Tolerated by normal tissues, anti-cancer therapies based on titanium compounds are limited by low efficacy/selectivity and lack of understanding of their mode(s) of action. In vitro antitumour activity and mode of cell death incurred by enantiopure T... Read More about Enantiopure titanocene complexes: direct evidence for paraptosis in cancer cells.

Soot-in-oil 3D volume reconstruction through the use of electron tomography: an introductory study (2015)
Journal Article
La Rocca, A., Campbell, J., Fay, M., & Orhan, O. (2016). Soot-in-oil 3D volume reconstruction through the use of electron tomography: an introductory study. Tribology Letters, 61(1), Article 8. https://doi.org/10.1007/s11249-015-0625-z

Understanding soot nanoparticle interaction with oil additives and the causes of soot-induced thickening would assist in lubricant formulation, prolonging engine life and improving engine efficiency. Three-dimensional measurement of soot structures i... Read More about Soot-in-oil 3D volume reconstruction through the use of electron tomography: an introductory study.

The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation (2015)
Journal Article
Pacella, M., Fay, M. W., Butler-Smith, P. W., & Axinte, D. A. (2015). The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation. Diamond and Related Materials, 59, 62-68. https://doi.org/10.1016/j.diamond.2015.09.009

© 2015 Published by Elsevier B.V. Cubic boron nitride, being only second to diamond for its hardness and possessing superior thermal stability is suitable for a wide range of applications. In particular, the versatility of this material and its polyc... Read More about The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation.

Characterisation of soot in oil from a gasoline direct injection engine using Transmission Electron Microscopy (2015)
Journal Article
La Rocca, A., Bonatesta, F., Fay, M., & Campanella, F. (2015). Characterisation of soot in oil from a gasoline direct injection engine using Transmission Electron Microscopy. Tribology International, 86, 77-84. https://doi.org/10.1016/j.triboint.2015.01.025

In this work, an investigation of soot-in-oil samples drawn from the oil sump of a gasoline direct injection (GDI) engine was carried out. Soot particulate was characterised in terms of size, distribution and shape of the agglomerates, and internal s... Read More about Characterisation of soot in oil from a gasoline direct injection engine using Transmission Electron Microscopy.

Ligand-Induced Control of Photoconductive Gain and Doping in a Hybrid Graphene–Quantum Dot Transistor (2015)
Journal Article
Turyanska, L., Makarovsky, O., Svatek, S. A., Beton, P. H., Mellor, C. J., Patanè, A., …Wilson, N. R. (2015). Ligand-Induced Control of Photoconductive Gain and Doping in a Hybrid Graphene–Quantum Dot Transistor. Advanced Electronic Materials, 1(7), 1500062. https://doi.org/10.1002/aelm.201500062

In graphene devices decorated with a layer of near-infrared colloidal PbS quantum dots (QDs), the choice of the QD capping ligands and the integrity of the QD layer have a strong influence on the doping, carrier mobility, and photoresponse. By using... Read More about Ligand-Induced Control of Photoconductive Gain and Doping in a Hybrid Graphene–Quantum Dot Transistor.

TEM study on the electrical discharge machined surface of single-crystal silicon (2013)
Journal Article
Murray, J., Fay, M., Kunieda, M., & Clare, A. (2013). TEM study on the electrical discharge machined surface of single-crystal silicon. Journal of Materials Processing Technology, 213(5), https://doi.org/10.1016/j.jmatprotec.2012.11.028

EDM is a useful process for machining high-aspect ratio features with good accuracy in electrically conductive materials irrespective of their mechanical properties. With the ability of micro-EDM to compete with the resolution of conventional semi-co... Read More about TEM study on the electrical discharge machined surface of single-crystal silicon.

Band-gap profiling by laser writing of hydrogen-containing III-N-Vs (2012)
Journal Article
Balakrishnan, N., Pettinari, G., Makarovsky, O., Turyanska, L., Fay, M. W., De Luca, M., …Patanè, A. (2012). Band-gap profiling by laser writing of hydrogen-containing III-N-Vs. Physical review B: Condensed matter and materials physics, 86(15), Article 155307. https://doi.org/10.1103/PhysRevB.86.155307

We show that the dissociation of the N-H complex in hydrogenated III-N-Vs can be laser activated at temperatures that are significantly smaller than those (>200°C) required for thermal dissociation due to a resonant photon absorption by the N-H compl... Read More about Band-gap profiling by laser writing of hydrogen-containing III-N-Vs.

Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content (2008)
Journal Article
Fay, M. W., Han, Y., Brown, P. D., Harrison, I., Hilton, K., Munday, A., …Martin, T. (2008). Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content. Journal of Applied Physics, 103(7), https://doi.org/10.1063/1.2890978

The effect of varying annealing temperature and Al layer thickness on the structural and electrical characteristics of AuPtAlTi/AlGaN/GaN ohmic contact structures has been systematically investigated. The relationship between annealing temperature, A... Read More about Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content.