Monolithic On-chip Integration of Electronics & Photonics Using III-nitrides for Telecoms
Lead Research Organisation:
Cardiff University
Department Name: School of Physics and Astronomy
Abstract
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Organisations
| Description | Research in group III-Nitrides semiconductors until now mainly focused on the light-emitting diodes, lasers and detectors working in the visible spectral band (350 to 750 nm). This project aims to develop III-Nitride semiconductors that can work in the near-infrared (NIR) spectral range. The epitaxial challenge to develop a near-infrared III-Nitride material by Molecular Beam epitaxy (MBE) is taken forward. (i) by surveying literature to understand possible growth conditions, a review of available information has complied intending to publish in future as a review article (which will include the output generated in this project). Based on our experience and information available in the literature, we are optimising growth conditions (temperature, metal fluxes) conditions to grow Indium (In) Gallium (Ga) nitride (N) nanowires (NW) with varied Ga/In composition spontaneously formed on a silicon substrate. • New or improved research methods or skills developed; We have managed to grow NWs of InGaN, now trying to establish the composition of In/Ga. • Significant new knowledge generated; We have identified InGaN nanoporous thin film/nanostructures, which are optical brighter than conventional Nitride thin films and nanowires • Important new research questions opened up; Spontaneously grown nanoporous thin film/nanostructures can provide flexibility to control the polarity of the material, In/Ga alloying |
| Exploitation Route | The novel findings on the infrared III-Nitride semiconductors will help develop optoelectronic devices (emitters and detectors) in the near-infrared (NIR) spectrum for telecommunication. |
| Sectors | Electronics |
| Description | School Visit - Howell's School, Cardiff |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Schools |
| Results and Impact | It was a college lecture (science talk) for years 11-12. There will be 20-25 students and teachers. The presentation drove the audience's curiosity to ask questions, leading to discussions on compound semiconductors. In the news article section of the school webpage, the impact of the presentation has generated interest among the science and non-science audience. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.howellscoedcollege.gdst.net/news-article/college-lecture--dr-manoj-kesaria |