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Reactive DC Sputtered TiO 2 Electron Transport Layers for Cadmium‐Free Sb 2 Se 3 Solar Cells (2024)
Journal Article
Don, C. H., Shalvey, T. P., Sindi, D. A., Lewis, B., Swallow, J. E. N., Bowen, L., …Major, J. D. (2024). Reactive DC Sputtered TiO 2 Electron Transport Layers for Cadmium‐Free Sb 2 Se 3 Solar Cells. Advanced Energy Materials, Article 2401077. https://doi.org/10.1002/aenm.202401077

The evolution of Sb2Se3 heterojunction devices away from CdS electron transport layers (ETL) to wide bandgap metal oxide alternatives is a critical target in the development of this emerging photovoltaic material. Metal oxide ETL/Sb2Se3 device perfor... Read More about Reactive DC Sputtered TiO 2 Electron Transport Layers for Cadmium‐Free Sb 2 Se 3 Solar Cells.

Nanostructured Channel for Improving Emission Efficiency of Hybrid Light-Emitting Field-Effect Transistors (2023)
Journal Article
Galán-González, A., Pander, P., MacKenzie, R. C. I., Bowen, L., Zeze, D. A., Borthwick, R. J., …Chaudhry, M. U. (2023). Nanostructured Channel for Improving Emission Efficiency of Hybrid Light-Emitting Field-Effect Transistors. ACS Photonics, 10(12), 4315-4321. https://doi.org/10.1021/acsphotonics.3c01080

We report on the mechanism of enhancing the luminance and external quantum efficiency (EQE) by developing nanostructured channels in hybrid (organic/inorganic) light-emitting transistors (HLETs) that combine a solution-processed oxide and a polymer h... Read More about Nanostructured Channel for Improving Emission Efficiency of Hybrid Light-Emitting Field-Effect Transistors.

Enhanced Carrier Collection in Cd/In-Based Dual Buffers in Kesterite Thin-Film Solar Cells from Nanoparticle Inks (2023)
Journal Article
Campbell, S., Zoppi, G., Bowen, L., Maiello, P., Barrioz, V., Beattie, N. S., & Qu, Y. (in press). Enhanced Carrier Collection in Cd/In-Based Dual Buffers in Kesterite Thin-Film Solar Cells from Nanoparticle Inks. ACS Applied Energy Materials, 6(21), 10883-10896. https://doi.org/10.1021/acsaem.3c01622

Increasing the power conversion efficiency (PCE) of kesterite Cu2ZnSn­(S,Se)4 (CZTSSe) solar cells has remained challenging over the past decade, in part due to open-circuit voltage (V OC)-limiting defect states at the absorber/buffer interface. Prev... Read More about Enhanced Carrier Collection in Cd/In-Based Dual Buffers in Kesterite Thin-Film Solar Cells from Nanoparticle Inks.

Biocompatible Ti3Au–Ag/Cu thin film coatings with enhanced mechanical and antimicrobial functionality (2023)
Journal Article
Lukose, C. C., Anestopoulos, I., Panagiotidis, I., Zoppi, G., Black, A. M., Dover, L. G., …Birkett, M. (2023). Biocompatible Ti3Au–Ag/Cu thin film coatings with enhanced mechanical and antimicrobial functionality. Biomaterials Research, 27(1), Article 93. https://doi.org/10.1186/s40824-023-00435-1

Background Biofilm formation on medical device surfaces is a persistent problem that shelters bacteria and encourages infections and implant rejection. One promising approach to tackle this problem is to coat the medical device with an antimicrobial... Read More about Biocompatible Ti3Au–Ag/Cu thin film coatings with enhanced mechanical and antimicrobial functionality.

Multi‐Phase Sputtered TiO2‐Induced Current–Voltage Distortion in Sb2Se3 Solar Cells (2023)
Journal Article
Don, C. H., Shalvey, T. P., Smiles, M. J., Thomas, L., Phillips, L. J., Hobson, T. D. C., …Major, J. D. (2023). Multi‐Phase Sputtered TiO2‐Induced Current–Voltage Distortion in Sb2Se3 Solar Cells. Advanced Materials Interfaces, 10(20), https://doi.org/10.1002/admi.202300238

Despite the recent success of CdS/Sb2Se3 heterojunction devices, cadmium toxicity, parasitic absorption from the relatively narrow CdS band gap (2.4 eV) and multiple reports of inter-diffusion at the interface forming Cd(S,Se) and Sb2(S,Se)3 phases,... Read More about Multi‐Phase Sputtered TiO2‐Induced Current–Voltage Distortion in Sb2Se3 Solar Cells.

Adatom controlled emergence of high hardness in biocompatible beta-Ti3Au intermetallic thin film surfaces (2023)
Journal Article
Lukose, C. C., Anestopoulos, I., Bowen, L., Panayiotidis, M. I., & Birkett, M. (2023). Adatom controlled emergence of high hardness in biocompatible beta-Ti3Au intermetallic thin film surfaces. Surfaces and Interfaces, 40, Article 103034. https://doi.org/10.1016/j.surfin.2023.103034

There is growing international interest in hard biocompatible thin film surface coatings to extend the lifetime of medical implants. Parameters of the physical vapour deposition technique can be utilized to fine tune the microstructure and resulting... Read More about Adatom controlled emergence of high hardness in biocompatible beta-Ti3Au intermetallic thin film surfaces.

Biomechanical characteristics of silver enriched diamond-like carbon coatings for medical applications (2023)
Journal Article
Zia, A. W., Anestopoulos, I., Panayiotidis, M. I., Bowen, L., & Birkett, M. (2023). Biomechanical characteristics of silver enriched diamond-like carbon coatings for medical applications. Journal of Alloys and Compounds, 958, Article 170473. https://doi.org/10.1016/j.jallcom.2023.170473

Silver enriched diamond-like carbon (Ag/DLC) coatings are gaining a reputation for medical applications as Ag doping improves the intrinsic biocompatibility and antimicrobial features of DLC, and higher Ag amounts improve its hemocompatibility and gr... Read More about Biomechanical characteristics of silver enriched diamond-like carbon coatings for medical applications.

Nanoindentation of Horn River Basin Shales: The Micromechanical Contrast Between Overburden and Reservoir Formations (2023)
Journal Article
Charlton, T., Rouainia, M., Aplin, A., Fisher, Q., & Bowen, L. (2023). Nanoindentation of Horn River Basin Shales: The Micromechanical Contrast Between Overburden and Reservoir Formations. Journal of Geophysical Research. Solid Earth, 128(3), Article e2022JB025957. https://doi.org/10.1029/2022jb025957

We present a micromechanical characterization of shales from the Horn River Basin, NW Canada. The shales have contrasting mineralogy and microstructures and play different geomechanical roles in the field: the sample set covers an unconventional gas... Read More about Nanoindentation of Horn River Basin Shales: The Micromechanical Contrast Between Overburden and Reservoir Formations.

Thermal activation of Ti(1-x)Au(x) thin films with enhanced hardness and biocompatibility (2022)
Journal Article
Lukose, C. C., Anestopoulos, I., Mantso, T., Bowen, L., Panayiotidis, M. I., & Birkett, M. (2022). Thermal activation of Ti(1-x)Au(x) thin films with enhanced hardness and biocompatibility. Bioactive Materials, 15, 426-445. https://doi.org/10.1016/j.bioactmat.2022.02.027

The lifetime of orthopaedic implants can be extended by coating the softer Ti6Al4V alloy with harder biocompatible thin films. In this work, thin films of Ti(1-x)Au(x) are grown on Ti6Al4V and glass substrates by magnetron sputtering in the entire x... Read More about Thermal activation of Ti(1-x)Au(x) thin films with enhanced hardness and biocompatibility.

A method for automatic shale porosity quantification using an Edge-Threshold Automatic Processing (ETAP) technique (2021)
Journal Article
Tian, S., Bowen, L., Liu, B., Zeng, F., Xue, H., Erastova, V., …Liu, J. (2021). A method for automatic shale porosity quantification using an Edge-Threshold Automatic Processing (ETAP) technique. Fuel, 304, Article 121319. https://doi.org/10.1016/j.fuel.2021.121319

Scanning electron microscopy (SEM) is one of the most prevalent methods used to image and quantify the pore size distribution of shale rock, critical in understanding unconventional petroleum systems and production. Generally, digital greyscale SEM i... Read More about A method for automatic shale porosity quantification using an Edge-Threshold Automatic Processing (ETAP) technique.