Publication - Patrick Parkinson - Physics · Strategy · Innovation

Patrick Parkinson - Physics · Strategy · Innovation

Publication

A collection of 14 posts

New Publication: Self-Catalyzed AlGaAs Nanowires and AlGaAs/GaAs Axial Heterostructures Grown by Molecular Beam Epitaxy

New Publication: Self-Catalyzed AlGaAs Nanowires and AlGaAs/GaAs Axial Heterostructures Grown by Molecular Beam Epitaxy

A new paper in collaboration with the Huiyun Liu group (UCL), Ana Sanchez group (Warwick) and David Mowbray group (Sheffield). In our contribution, led by Stephen Church, we showed that a previously low quality structure (AlGaAs) can be made to emit strongly at room temperature. Reference: Self-Catalyzed AlGaAs Nanowires and

New Publication: Wavelength-tunable femtosecond pulsed laser for the characterisation of solid-state sensors

New Publication: Wavelength-tunable femtosecond pulsed laser for the characterisation of solid-state sensors

Group PhD Nawal Al-Amairi (now lecturer at UTAS Oman) has published a device work in collaboration with the particle physics team at Manchester. In this new work, an ultrafast laser system is used to characterize different device structures for particle detection, revealing a broad spectrum approach to novel 3D detectors.

New Publication: As-Flux-Induced Diameter Control in GaAs Nanowires

New Publication: As-Flux-Induced Diameter Control in GaAs Nanowires

A new paper has been published in J Phys Chem C led by the Huiyun Liu group at UCL, with Stephen Church as lead Manchester contributor. In this work, an improved growth approach for GaAs nanowires is introduced that provides a route to generate diameter control and a method to

New Publication: Interfaces in Epitaxially Grown Zn3P2 Nanowires and Their Composition-Dependent Optoelectronic Properties for Photovoltaic Applications

A new paper in collaboration with Simon Escobar Steinvall (Lund University) was accepted for publication in Chemistry of Materials. In this work, high throughput spectroscopy was used to understand the variation in emission energy of ZnP nanowires in InP. This materials, whilst relatively old, is now seen as a potential

New Paper: Microstructure determines crystallinity-driven singlet fission efficiency in diF-TES-ADT

Dr Hoyeon Choi has had the final paper of his PhD accepted in Scientific Reports. This work, in collaboration with Prof Jenny Clark at the University of Sheffield uses hyperspectral mapping to study spatial inhomogeneities in singlet fission materials. Combined with time-resolved spectroscopic measurements, this work shows the role of

New Paper: Wafer-scale correlated morphology and optoelectronic properties in GaAs/AlGaAs core–shell nanowires

Group PhD student Ishika Das had her first paper accepted in APL Materials. This work, led by Stephen Church in collaboration with Prof. Fumitaro Ishikawa at the University of Hokkaido, reported on wafer-scale characterization of nanowire growth. This work provides a route to understand homogeneity and uniformity at the full

New Paper: Nitrogen-vacancy color centers in nanodiamonds as reference single-photon emitters

Group PhD Nikesh Patel has just published a new work in Optics Express, in collaboration with colleagues at NPL. While NV-centres in nano-diamonds are well established as optically accessible quantum emitters, they're not all the same. By studying >1000 emitters at two different sites, Nikesh and co-authors

New Paper: Data-Driven Discovery for Robust Optimization of Semiconductor Nanowire Lasers

Group postdoc Stephen Church has had a major paper accepted in "Lasers & Photonics Review". The work culminates two years of collaborative work with a number of partners around the world: - Jena (Germany), - Australian National University, - Zhejiang University (China), - University College London, - University

New Paper: Optical Characterization of Size- and Substrate-Dependent Performance of Ultraviolet Hybrid Plasmonic Nanowire Lasers

We have a new paper as a result of a collaboration between Freidrich-Schiller University Jena, the University of Manchester, the Leibniz Institute of Photonic Technology and the National Yang-Ming Chiao Tung University. Collaborator Francesco Vitale (Jena) led this study to understand how substrate interactions can modify photonic to plasmonic nanolasing

New Publication: Disentangling the impact of point defect density and carrier localization

Green LEDs remain low efficiency compared with their blue counterparts, but are required for future display technology. Power-dependent measurements show that current- rather than defect-management is crucial to improving efficiency.

New Publication: Heterometallic Lanthanide Complexes with Site-Specific Binding that Enable Simultaneous Visible and NIR-emission

Lanthanide elements have distinctive and long-lived light emission. Holding multiple lanthanides close together provides a route to creating new biological imaging molecules.

New Publication: Bottom-up, chip-scale engineering of low threshold, multi- quantum well microring lasers

Computation with light instead of electricity will increase speed and energy efficiency. We show a route to growing lasers directly onto chips with high repeatability to enable this technology.

New Publication: Sub-Picosecond Carrier Dynamics Explored using Automated High-Throughput Studies of Doping Inhomogeneity within a Bayesian Framework

Nano-materials are hard to precisely manufacture. By measuring >10k, we use their disorder to understand their performance in a paper in Small.

New Publication: Improving Quantum Well Tube Homogeneity Using Strained Nanowire Heterostructures

New Publication: Improving Quantum Well Tube Homogeneity Using Strained Nanowire Heterostructures

Group PhD student Nikesh Patel has just had his first paper accepted in ACS Applied Materials and Interfaces. His study uses a new methodology to understand how quantum "shells" - less than 10nm thick - vary both within single nanowires, and between them. By using automated high-throughput approaches