Topic

Stephen Church

A collection of 21 issues

New preprint: Holistic nanowire laser characterization as a route to optimal design

Group postdoc Stephen Church has submitted his most recent work to the arXiv preprint server. In this new work, Stephen carried out optical, microscopic, and electron micrograph characterization of over 5000 nanowire lasers. By correlating geometry effects which affect the nanolaser cavity, and material quality that affect gain material, we

Kick-off meeting: Kubos Semi IAA

Patrick and Stephen traveled to Cardiff University to meet Kubos representatives as part of the Impact Accelerator Kick-off meeting. Stephen will spend half of his time developing our spectroscopy tools to support novel materials develop over the next 12 month as part of a secondment to Kubos.

New Grant - EPSRC Impact Accelerator with Kubos Semi

The group has been awarded a 1-year “impact accelerator” grant with Kubos Semi, to fund a 6 month secondment of group PDRA Stephen Church. In this project, Stephen will translate our high-throughput methodology towards in-line optimization of emerging semiconductor materials. Kubos develop cubic-phase GaN which can be grown on large

Conference Presentation: CMD 2022

Two of the group gave oral presentations at CMD29 in Manchester. Group PhD student Hoyeon Choi reported his work on the “Impact of Microstructure of Crystallinity driven singlet fission efficiency in diF-TES-ADT“, a collaboration between Jenny Clark (Sheffield) our our group. Group PDRA Stephen Church reported his work on “Disentangling

Conference Presentation: Advanced Photonics Congress

Group PDRA Stephen Church presented his work on nanolaser characterization at APC22 in Maastricht. He described our high-throughput methodology to understand the relative contributions of gain, end facet and cavity for photonic integrated application.

Conference Presentation: UK Semiconductors

Group postdoc Stephen Church presented a talk entitled “Disentangling Gain, Distributed Losses and End-Facet Losses in Freestanding Nanowire Lasers using Automated High-Throughput Micro-Spectroscopy” at UK Semiconductors in Sheffield, UK. This collaborative work between Manchester and colleagues in Zhejiang and University College London reported a multimodal correlative approach to studying nanolasers.

New Paper: Optical Characterisation of Nanowire Lasers

Group postdoc Stephen Church and PhD student Ruqaiya Al-Abri collaborated with Dhruv Saxena at Imperial College London to produce a review of methods to characterise nanowire lasers. This article, forming part of a celebration issue for the birthday of colleague Prof. Chennupati Jagadish (at the Australian National University) seeks to

New Paper: Holistic Determination of Optoelectronic Properties using High-Throughput Spectroscopy of Surface-Guided CsPbBr3 Nanowires

Optoelectronic materials form the building blocks of crucial components of modern technology, including solar cells, CCDs, lasers and LEDs. The past decade has seen significant developments in materials science that enable the shrinking of these materials to the nano-scale. These advancements have also created entirely new technologies based around light

Nanowire Week 2022: Talks and Posters

Group members Dr Stephen Church and Nikesh Patel have presented their work at the 2022 Nanowire Week meeting in Chamonix, France. Stephen gave an oral presentation on his recent research on “Nanowire facet reflectivity and lasing performance using high-throughput interferometry“. Nikesh presented a poster on his work on “High Intra-

MRS Fall 2021 - Mobility, Quantum Efficiency and Defect Density from High Throughput Spectroscopy of CsPbBr3 Nanowires

Stephen Church will present a talk on his recent work on holistic modelling using high-throughput spectroscopy virtually at MRS Fall 2021. This work, in collaboration with Prof Ernesto Joselevich at the Weizmann Institute uses high-throughput multimodal techniques to simultaneously model mobility, quantum efficiency and defect density from a single correlative