Optoelectronic Materials Spectroscopy Lab (Page 2)

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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

Talks at Nanowire Week

The group attended and spoke at Nanowire week in Cambridge. Stephen Church: dot-in-wire emitters Ishika Das: Wafer scale mapping of nanowires Tharaka Weeradanna: microfludics for nanowires

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

Oxford Nanotechnology talk and Celebration

Patrick gave a group highlights talk at the Oxford Nanotechnology Symposium at the Clarendon Building. This symposium was arranged in honour of Prof. Chennupati Jagadish being elected as a Fellow of the Royal Society.

Graduation day: Nikesh Patel

Congratulations again to Dr Nikesh Patel who graduated in the sunshine of Manchester. He'll be taking a role with the startup aegiq in Sheffield.

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

Conference: ICMAT-2025, Singapore

Patrick gave an invited talk at the ICMAT 2025 conference in Singapore. His talk, on "Single Shot Multi-Objective Optimization for Epitaxially-Grown Microring Lasers" reports recent work done in a collaboration between Manchester, the Australian National University, and A*STAR Singapore.

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 established that some

IBM Hartree Seminar

Patrick was invited by fellow FLF, Eloisa Bentivegna, to give an IBM Hartree seminar. It was great to speak with IBM researchers and research leaders on a sunny Cheshire afternoon.