High-resolution photoluminescence study on donor-acceptor pair (DAP) recombination in silicon crystals co-doped with phosphorous and gallium

Autor: Tarek O. Abdul Fattah, Janet Jacobs, Vladimir P. Markevich, Nikolay V. Abrosimov, Matthew P. Halsall, Iain F. Crowe, Anthony R. Peaker

Publikováno v: Journal of Science: Advanced Materials and Devices, Vol 8, Iss 4, Pp 100629- (2023)

Before lower purity, lower cost silicon (Si) materials, such as compensated Si, can play a role in the terawatt-level (TW) capacity of photovoltaics, a better understanding of the fundamental properties of impurities in compensated Si is essential. I

Externí odkaz: https://doaj.org/article/d11487d7d8834392bbe982a949f4bfba

Raman Mapping Analysis of Graphene-Integrated Silicon Micro-Ring Resonators

Autor: Siham M. Hussein, Iain F. Crowe, Nick Clark, Milan Milosevic, Aravind Vijayaraghavan, Frederic Y. Gardes, Goran Z. Mashanovich, Matthew P. Halsall

Publikováno v: Nanoscale Research Letters, Vol 12, Iss 1, Pp 1-8 (2017)

Abstract We present a Raman mapping study of monolayer graphene G and 2D bands, after integration on silicon strip-waveguide-based micro-ring resonators (MRRs) to characterize the effects of the graphene transfer processes on its structural and optoe

Externí odkaz: https://doaj.org/article/8ec321cd77e740e684d421901086e139

Spectrometer based on a compact disordered multi-mode interferometer

Autor: Ankit Poudel, Pravin Bhattarai, Rijan Maharjan, Maddison Coke, Richard J Curry, Iain F Crowe, Ashim Dhakal

Publikováno v: Poudel, A, Bhattarai, P, Maharjan, R, Coke, M, Curry, R, Crowe, I & Dhakal, A 2023, ' Spectrometer based on a compact disordered multi-mode interferometer ', Optics Express, vol. 31, no. 8, pp. 12624-12633 . https://doi.org/10.1364/OE.484199

We present a compact, CMOS compatible, photonic integrated circuit (PIC) based spectrometer that combines a dispersive array element of SiO2-filled scattering holes within a multimode interferometer (MMI) fabricated on the silicon-on-insulator (SOI)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c132b0eb0776c4ebf058351d2bb565e8
https://doi.org/10.1364/oe.484199

Indium-Doped Silicon for Solar Cells—Light-Induced Degradation and Deep-Level Traps

Autor: Anthony R. Peaker, Hussein M. Ayedh, Robert J. Falster, Jeff Binns, Matthew P. Halsall, Vladimir P. Markevich, Nikolay V. Abrosimov, Iain F. Crowe, José Coutinho, I. D. Hawkins, Joyce Ann T. De Guzman

Publikováno v: De Guzman, J A T, Markevich, V P, Hawkins, I D, Ayedh, H M, Coutinho, J, Binns, J, Falster, R, Abrosimov, N V, Crowe, I F, Halsall, M P & Peaker, A R 2021, ' Indium-Doped Silicon for Solar Cells—Light-Induced Degradation and Deep-Level Traps ', Physica Status Solidi (A) Applications and Materials Science . https://doi.org/10.1002/pssa.202100108

Funding Information: The authors would like to thank EPSRC (UK) for funding this work via grant EP/TO25131/1. J.A.T.D.G. would like to thank the Government of the Philippines through the Department of Science and Technology (DOST) for her Ph.D. fundi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::223b4624d5d9e43f5a2be07efde147c4
https://aaltodoc.aalto.fi/handle/123456789/109032

Non-diffracting beam generated from a photonic integrated circuit based axicon-like lens

Autor: Richard A. Hogg, Richard J. Curry, David T. D. Childs, Iain F. Crowe, Sanket Bohora, Ashim Dhakal, Rijan Maharjan, Pravin Bhattarai

Publikováno v: Maharjan, R, Bohora, S, Bhattarai, P, Crowe, I, Curry, R J, Hogg, R, Childs, D & Dhakal, A 2021, ' Non-diffracting beam generated from a photonic integrated circuit based axicon-like lens ', Optics Express, vol. 29, no. 7, pp. 10480-10490 . https://doi.org/10.1364/OE.419618

We demonstrate an on-chip silicon-on-insulator (SOI) device to generate a non-diffracting beam of ≈850 µm length from a diffractive axicon-like lens etched using a low resolution (200 nm feature size, 250 nm gap) deep-ultraviolet lithographic fabr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46e61a4055ddc61007f05b9c5cf983b1
https://eprints.gla.ac.uk/276911/1/276911.pdf