big-data for nano-electronics Welcoming back returning MPhys students The group welcomes back our returning MPhys students who will continue on their projects this semester. This includes: Big-data for nano-electronics – development of machine-learning tools for analysis of imaging and spectroscopic data for nanotechnology Rafe Whitehead, Thomas Blackmore, Jonathan Ryding Earth’s-field NMR – design and construction of an NMR system
big-data for nano-electronics New Review : Measuring, controlling and exploiting heterogeneity in optoelectronic nanowires Group PhD students Ruqaiya Al-Abri and Hoyeon Choi have written an invited review article for JPhys Photonics, published today. Lead author Ruqaiya Al-Abri describes this work: Among the one-dimensional structures, semiconductor nanowires have attracted great attention; from the growth process to the production of functional devices they have been widely
Dragomir Neshev PSI Seminar: Prof Dragomir Neshev on night-vision meta-materials The OMS group invited Professor Dragomir Neshev, director of the Australian Research Council Centre of Excellence for Tranformative Metal-Optical Systems to gave the Photon Science Institute Seminar today. He spoke about the new institute and a specific example of non-linear optical metamaterials for night-vision.
ANU New Paper : Facet-Related Non-uniform Photoluminescence in Passivated GaAs Nanowires Our collaborative work on spatially inhomogeneous recombination in semiconductor nanowires has been published in a special issue of Frontiers in Chemistry. The work, led by Dr. Nian (Jenny) Jiang at the University of Cambridge reports the spatially varying emission intensity from passivated nanowires. By comparing the bulk emission to buried
Aruni Fonseka Group Seminar: Aruni Fonseka, Warwick Electron Microscopy Dr Aruni Foseka of the Warwick Electron Microscopy Centre gave a seminar to the group and colleagues at the Photon Science Institute. Her talk covered electron microscopy techniques for nanomaterial characterisation, including dark-field and spectroscopic approaches.
Import 2022-12-08 21:42 EPSRC-Funded Studentship live on FindAPhD The advert for a September 2021 start EPSRC-funded studentship is now live on findaphd. Please contact Patrick with informal questions.
conductiv.ai New Scientific Advisor Role Patrick has been appointed as a Scientific Advisor for the Berlin-based startup conductiv.ai. Conductiv will merge simulation and process data to reduce the iterations required for optimization of semiconductor manufacture.
big-data for nano-electronics EPSRC-funded PhD position now available A fully funded EPSRC studentship (DTP) will be available in the group for a September 2021 start. This studentship is associated with the “Big-data for nano-electronics” project, and is open to UK-based applicants (EU applicants living in the UK may also be eligible for some support). The project will develop
PhD examiner Viva in Oxford: Alice Smith Patrick served as external examiner for the DPhil viva of Alice Smith (part of the Donal Bradley research group) at the University of Oxford, alongside Prof. Arzhang Ardavan as internal examiner.
EPSRC New Capital Equipment Grant - Ultrafast Laser Facility The group has been awarded funds to purchase a new ultrafast laser facility for the Photon Science Institute through an EPSRC Core Equipment Award (EP/V036343/1). This grant will be used to replace the aging Coherent RegA system with a turn-key highly tunable ultrafast laser system with optical parametric
big-data for nano-electronics 2020.S7 - Group MPhys Students The group welcomes a bumper set of new MPhys (Masters project) students on a range of projects. Welcome to all students! Big-data for nano-electronics – development of machine-learning tools for analysis of imaging and spectroscopic data for nanotechnology Rafe Whitehead, Thomas Blackmore, Omar Ahmed, Jonathan Ryding Earth’s-field NMR – design and
big-data for nano-electronics Welcome to Dr Stephen Church The group welcomes our new PDRA working on the Big-data for Nano-Electronics project. Dr Stephen Church joins the group from working in cubic-phase GaN for white-light and RGB LEDs. Welcome to Stephen!
PhD viva Congratulations to group PhD Stefan Skalsky A huge congratulations to group PhD student Stefan Skalsky (co-supervised with Prof. Wendy Flavell) who passed his PhD viva with minor corrections. Even more impresively, he managed to deal with the challenges of a video-cal based viva. His examiners were Prof. David Mowbray (Sheffield) and Prof. Mark Dickinson (Manchester).
coronavirus Back to work - PSI labs reopen The Photon Science Institute laser labs are now reopened after nearly 19 weeks of closure due to the novel coronavirus shutdown. All lasers are back on, and reseach will resume over the upcoming week or two.
iTCSPC Stefan Skalsky thesis submission Congratulations to lab member Stefan Skalsky, who submitted his PhD thesis today. He work, entitled “Interferometric Time-correlated Single Photon Counting for Nano-optoelectronic Characterisation” covers his research on the i-TCSPC tool.
big-data for nano-electronics Postdoctoral Research Position Available: Big-Data for Nano-Electronics A 2-year postdoctoral position is available in the group to work on data acquisition and analytics pipeline on the big-data for nano-electronics project. The post has the potential to be extended to 4 years. The successful candidate will apply statistical approaches to large-scale data produced by high-throughput spectroscopy and imaging
ANU New Paper: Carrier dynamics and recombination mechanisms in InP twinning superlattice nanowires A new paper has been published in Optics Express, led by collaborator Xiaoming Yuan at Central South University (Changsha) and growth colleagues in the group of Prof. Jagadish at Australian National University. In this work, novel “twinning-superlattice” nanowires are grown. Once passivated, this growth method produces extremely high quality nanowires,
big-data for nano-electronics Seminar : LIV.DAT Patrick gave a virtual seminar at Liverpool Big Data Science Centre for Doctoral Training (LIV.DAT) on “Big-data for nano-electronics“. Thanks to Prof. Carsten Welsch for the invitation!
Hoyeon Choi New Paper: Visualizing the role of photoinduced ion migration on photoluminescence in halide perovskite grains Group student Hoyeon has had a paper accepted in the RSC Journal of Materials Chemistry C, studying the photo-brightening effect in perovskite grains using correlated optical and chemical mapping. In collaboration with the Flavell group and the NanoSIMS group at Manchester, this study linked luminescence lifetime and emission energies to
Fellowship New Project: Big-Data for nano-electronics Patrick has been awarded a 4-year research fellowship from UKRI for a project on “big-data for nano-electronics”. This Future Leaders Fellowship will enable Patrick to focus on building a research group to develop a new methodology for accelerating the study of functional nanotechnology. Project Summary The modern world runs on
Hoyeon Choi Conference Proceedings: Spatially and temporally resolved degradation in antisolvent treated perovskite films Group PhD student Hoyeon Choi has had a conference proceedings accepted for SPIE Europe 2020. As this conference has been cancelled, his talk is available throught the SPIE Digital Form. In his work, Hoyeon describes the application of confocal and time-resolved spectral mapping to study and understand photobrightening and degradation
Huiyun Liu New Paper: Heterostructure and Q-factor engineering for low-threshold and persistent nanowire lasing Group PhD student Stefan Skalsky’s paper on semiconductor nanowire lasing has just been published in Light: Science and Applications. In this new work, Stefan used his newly developed Interferometric Time-Correlated Single Photon Counting system (i-TCSPC) to measure the coherence length of laser emission from nanowires grown by the Liu
Arturo Alanis PhD Viva: Arturo Arturo Alanis (the first PhD student of the group) had a successful PhD viva today. His thesis examiners were Dr Hannah Joyce (Cambridge) and Dr Jessica Boland (Manchester). Arturo has already secured a postdoctoral position to start in a few weeks; we’ll be sad to see him go, but
Import 2022-12-08 21:42 Photonics West 2020 - presentation and proceedings The talk and proceedings for Patrick’s recent invited talk at Photonics West is now available online. “A needle in a needlestack” describes how our recent work on Manchester on inhomogeneity can provide more information about functional performance than a homogeneous population can. Reference: A needle in a needlestack: exploiting
Huiyun Liu New arXiv paper: Defect-Free Axial GaAs/GaAsP Nanowire Quantum Dots with Strong Carrier Confinement We have uploaded a new paper on quantum-dot-in-nanowire structures to the arXiv. Working with colleagues at University College London, the University of Warwick, the University of Sheffield and the University of Copenhagen, this work demonstrates the growth of high-quality GaAs quantum dot inclusions in a GaAsP nanowire, with evidence for
