Fabrication and electrochemical response of pristine graphene ultramicroelectrodes

Autor: Ernie W. Hill, Bruce Grieve, Stefan Goodwin, Zachary Coldrick, Aravind Vijayaraghavan, Sebastian Heeg

Publikováno v: Goodwin, S, Coldrick, Z, Heeg, S, Grieve, B, Vijayaraghavan, A & Hill, E W 2021, ' Fabrication and electrochemical response of pristine graphene ultramicroelectrodes ', Carbon, vol. 177, pp. 207-215 . https://doi.org/DOI: 10.1016/j.carbon.2021.02.078
University of Manchester-PURE

Ultramicroelectrodes (UMEs) are electrochemical working electrodes with at least one dimension less than 25 μm. Here, we demonstrate a method to fabricate pristine (contamination and doping-free) monolayer graphene UMEs and characterise its electroc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e2cb7ec96276e07c090d9dde23b37c2
https://doi.org/10.1016/j.carbon.2021.02.078

Millimeter and submillimeter range detector based on graphene ballistic rectifiers

Autor: Frederic Teppe, Jeremie Torres, Dominique Coquillat, Luca Varani, Christophe Consejo, Jiawei Zhang, Dmytro B. But, Ernie W. Hill, Aimin Song, Wojciech Knap, Gregory Auton

Publikováno v: IEEE
2018 22nd International Microwave and Radar Conference (MIKON)
2018 22nd International Microwave and Radar Conference (MIKON), May 2018, Poznan, Poland. ⟨10.23919/MIKON.2018.8405293⟩

We consider a terahertz detector based on a graphene ballistic rectifier integrated with an antenna. The device demonstrates an extrinsic responsivity of hundreds of V/W in the range 70-440 GHz at room temperature with no indications of a cut-off fre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1f0d915635bc23f5586ef3f0ef42510
https://hal.archives-ouvertes.fr/hal-01923897

Graphene based ballistic rectifiers

Autor: Ernie W. Hill, Gregory Auton, Aimin Song, Arun K. Singh

Publikováno v: Carbon. 84:124-129

Despite having the longest mean-free-path of carriers in all electronic materials, it has been virtually impossible to demonstrate graphene ballistic devices due to the rather diffusive and hence random scattering of carriers from the edges. Hence we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e843671105ec9ae7bb0e698d923fe2e9
https://doi.org/10.1016/j.carbon.2014.11.064

On the study of monolayer graphene resonator and antenna for wireless applications

Autor: Xiao Zhang, Habiba Hafdallah Ouslimani, Kewen Pan, Ernie W. Hill, Zhirun Hu, Gregory Auton

Publikováno v: 2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP).

Monolayer graphene microwave resonator and THz antenna are presented. CVD graphene is used for the microwave resonator fabrication and exfoliated graphene for he THz antennas. Raman spectroscopy has been adopted to confirm the layer number of graphen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7a87c3a08d79e1cac844cbd94113598
https://doi.org/10.1109/imws-amp.2017.8247359

Towards Substrate Engineering of Graphene-Silicon Schottky Diode Photodetectors

Autor: Hakan Selvi, Nawapong Unsuree, Eric Whittaker, Matthew P. Halsall, Ernie W. Hill, Andrew Thomas, Patrick Parkinson, Tim J. Echtermeyer

Publikováno v: Selvi, H, Unsuree, N, Whittaker, E, Halsall, M, Hill, E, Thomas, A, Parkinson, P & Echtermeyer, T 2018, ' Towards Substrate Engineering of Graphene-Silicon Schottky Diode Photodetectors ', Nanoscale, vol. 10, no. 7, pp. 3399-3409 . https://doi.org/10.1039/c7nr09591k

Graphene-Silicon Schottky diode photodetectors possess beneficial properties such as high responsivities and detectivities, broad spectral wavelength operation and high operating speeds. Various routes and architectures have been employed in the past

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0b031d4652915c3995ed4ff24ddae60
http://arxiv.org/abs/1706.09042