Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Patrick Rebsdorf Whelan"'
Autor:
Binbin Zhou, Mattias Rasmussen, Patrick Rebsdorf Whelan, Jie Ji, Abhay Shivayogimath, Peter Bøggild, Peter Uhd Jepsen
Publikováno v:
Sensors, Vol 23, Iss 7, p 3669 (2023)
We demonstrate that the conductivity of graphene on thin-film polymer substrates can be accurately determined by reflection-mode air-plasma-based THz time-domain spectroscopy (THz-TDS). The phase uncertainty issue associated with reflection measureme
Externí odkaz:
https://doaj.org/article/df473ef79d58425e92888212d18015ec
Autor:
Binbin Zhou, Mattias Rasmussen, Patrick Rebsdorf Whelan, Jie Ji, Abhay Shivayogimath, Peter Bøggild, Peter Uhd Jepsen
Publikováno v:
Sensors; Volume 23; Issue 7; Pages: 3669
Zhou, B, Rasmussen, M, Whelan, P R, Ji, J, Shivayogimath, A, Bøggild, P & Jepsen, P U 2023, ' Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS ', Sensors, vol. 23, 3669 . https://doi.org/10.3390/s23073669
Zhou, B, Rasmussen, M, Whelan, P R, Ji, J, Shivayogimath, A, Bøggild, P & Jepsen, P U 2023, ' Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS ', Sensors, vol. 23, 3669 . https://doi.org/10.3390/s23073669
We demonstrate that the conductivity of graphene on thin-film polymer substrates can be accurately determined by reflection-mode air-plasma-based THz time-domain spectroscopy (THz-TDS). The phase uncertainty issue associated with reflection measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::932c61419165405c34d9345773e63722
Autor:
Timothy J. Booth, Mads Brandbyge, Abhay Shivayogimath, Mohammad Koleini, Peter Bøggild, Patrick Rebsdorf Whelan, Birong Luo
Publikováno v:
Luo, B, Koleini, M, Whelan, P R, Shivayogimath, A, Brandbyge, M, Bøggild, P & Booth, T J 2019, ' Graphene Subgrain-Defined Oxidation of Copper ', ACS Applied Materials and Interfaces, vol. 11, no. 51, pp. 48518-48524 . https://doi.org/10.1021/acsami.9b15931
ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces
The correlation between the crystal structure of chemical vapor deposition (CVD)-grown graphene and the crystal structure of the Cu growth substrate and their mutual effect on the oxidation of the underlying Cu are systematically explored. We report
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bc7fd65db0b59e81f814601bd93f6ec
https://doi.org/10.1021/acsami.9b15931
https://doi.org/10.1021/acsami.9b15931
Publikováno v:
Gammelgaard, L, Whelan, P R, Booth, T J & Bøggild, P 2021, ' Long-term stability and tree-ring oxidation of WSe 2 using phase-contrast AFM ', Nanoscale, vol. 13, no. 45, pp. 19238-19246 . https://doi.org/10.1039/d1nr05413a
In this work, we use atomic force microscopy (AFM) to investigate the long-term evolution of oxidative defects of tungsten diselenide (WSe2) in ambient conditions over a period of 75 months, which is the longest such study performed on any layered ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed75d8ecfa97f236a525ff718cc2069f
https://vbn.aau.dk/da/publications/cff80bf2-8884-46e9-b9a6-9044162ecfbd
https://vbn.aau.dk/da/publications/cff80bf2-8884-46e9-b9a6-9044162ecfbd
Autor:
Frederik Westergaard Østerberg, Stiven Forti, Clifford McAleese, Kenneth B. K. Teo, Binbin Zhou, Iwona Pasternak, Haofei Shi, Da Luo, Steven Brems, Odile Bezencenet, Camilla Coletti, Cedric Huyghebaert, Pierre Legagneux, Neeraj Mishra, Ben R. Conran, Timothy J. Booth, Bruno Dlubak, Abhay Shivayogimath, Alexandre Jouvray, Amaia Zurutuza, Cunzhi Sun, Birong Luo, Jie Ji, David M. A. Mackenzie, Qian Shen, Wlodek Strupinski, Dirch Hjorth Petersen, Peter Bøggild, Bjarke Sørensen Jessen, Ilargi Napal, Peter Uhd Jepsen, Alba Centeno, Patrick Rebsdorf Whelan, Deping Huang, Meihui Wang, Pierre Seneor, Rodney S. Ruoff
Publikováno v:
2D Materials
2D Materials, IOP Publishing, 2021, ⟨10.1088/2053-1583/abdbcb⟩
Whelan, P R, Zhou, B, Bezencenet, O, Shivayogimath, A, Mishra, N, Shen, Q, Jessen, B S, Pasternak, I, Mackenzie, D M A, Ji, J, Sun, C, Seneor, P, Dlubak, B, Luo, B, Østerberg, F W, Huang, D, Shi, H, Luo, D, Wang, M, Ruoff, R S, Conran, B R, McAleese, C, Huyghebaert, C, Brems, S, Booth, T, Napal, I, Strupinski, W, Petersen, D H, Forti, S, Coletti, C, Jouvray, A, Teo, K B K, Centeno, A, Zurutuza, A, Legagneux, P, Jepsen, P U & Bøggild, P 2021, ' Case studies of electrical characterisation of graphene by terahertz time-domain spectroscopy ', 2D materials, vol. 8, no. 2, 022003 . https://doi.org/10.1088/2053-1583/abdbcb
2D Materials, IOP Publishing, 2021, ⟨10.1088/2053-1583/abdbcb⟩
Whelan, P R, Zhou, B, Bezencenet, O, Shivayogimath, A, Mishra, N, Shen, Q, Jessen, B S, Pasternak, I, Mackenzie, D M A, Ji, J, Sun, C, Seneor, P, Dlubak, B, Luo, B, Østerberg, F W, Huang, D, Shi, H, Luo, D, Wang, M, Ruoff, R S, Conran, B R, McAleese, C, Huyghebaert, C, Brems, S, Booth, T, Napal, I, Strupinski, W, Petersen, D H, Forti, S, Coletti, C, Jouvray, A, Teo, K B K, Centeno, A, Zurutuza, A, Legagneux, P, Jepsen, P U & Bøggild, P 2021, ' Case studies of electrical characterisation of graphene by terahertz time-domain spectroscopy ', 2D materials, vol. 8, no. 2, 022003 . https://doi.org/10.1088/2053-1583/abdbcb
Graphene metrology needs to keep up with the fast pace of developments in graphene growth and transfer. Terahertz time-domain spectroscopy (THz-TDS) is a non-contact, fast, and non-destructive characterization technique for mapping the electrical pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::520430e160148c99129cea18cd899f41
Autor:
Meihui Wang, Peter Uhd Jepsen, Deping Huang, Ismael Garcia Serrano, Qian Shen, Antti-Pekka Jauho, Rodney S. Ruoff, Patrick Rebsdorf Whelan, José M. Caridad, M. Venkata Kamalakar, Peter Bøggild, Haofei Shi, Binbin Zhou, David M. A. Mackenzie, Jie Ji, Da Luo
Publikováno v:
Whelan, P R, Shen, Q, Zhou, B, Serrano, I G, Kamalakar, M V, MacKenzie, D M A, Ji, J, Huang, D, Shi, H, Luo, D, Wang, M, Ruoff, R S, Jauho, A P, Jepsen, P U, Bøggild, P & Caridad, J M 2020, ' Fermi velocity renormalization in graphene probed by terahertz time-domain spectroscopy ', 2D materials, vol. 7, no. 3, 035009 . https://doi.org/10.1088/2053-1583/ab81b0
We demonstrate terahertz time-domain spectroscopy (THz-TDS) to be an accurate, rapid and scalable method to probe the interaction-induced Fermi velocity renormalization {\nu}F^* of charge carriers in graphene. This allows the quantitative extraction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9b523a85b6e5bcd7f7f4187a59f8a41
Conductivity measurement of graphene on thin polymeric film by broadband air-plasma THz spectroscopy
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
The sheet conductivity of graphene on thin polymer film can be accurately measured by air-plasma based ultrabroadband terahertz time-domain spectroscopy (THz-TDS). The transmitted THz echo signals are well separated in time due to the short THz pulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e02d79d3142693d4d1d727fba2ce5cd
https://doi.org/10.1109/irmmw-thz.2019.8873899
https://doi.org/10.1109/irmmw-thz.2019.8873899
Autor:
Timothy J. Booth, Joachim Dahl Thomsen, Peter Bøggild, Patrick Rebsdorf Whelan, Alexandra Carvalho, Ann Julie Holt, Marco Bianchi, Nicolas Stenger, Antonio H. Castro Neto, Andrea Crovetto, Mathias Geisler, Philip Hofmann, Raluca Maria Stan, David M. A. Mackenzie, Abhay Shivayogimath
Publikováno v:
Shivayogimath, A, Thomsen, J D, Mackenzie, D M A, Geisler, M, Stan, R M, Holt, A J, Bianchi, M, Crovetto, A, Whelan, P R, Carvalho, A, Neto, A H C, Hofmann, P, Stenger, N, Bøggild, P & Booth, T J 2019, ' A universal approach for the synthesis of two-dimensional binary compounds ', Nature Communications, vol. 10, no. 1, 2957 . https://doi.org/10.1038/s41467-019-11075-2
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Nature Communications
Shivayogimath, A, Thomsen, J D, Mackenzie, D M A, Geisler, M, Stan, R-M, Holt, A J, Bianchi, M, Crovetto, A, Whelan, P R, Carvalho, A, Neto, A H C, Hofmann, P, Stenger, N, Bøggild, P & Booth, T J 2019, ' A universal approach for the synthesis of two-dimensional binary compounds ', Nature Communications, vol. 10, no. 1, 2957 . https://doi.org/10.1038/s41467-019-11075-2
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Nature Communications
Shivayogimath, A, Thomsen, J D, Mackenzie, D M A, Geisler, M, Stan, R-M, Holt, A J, Bianchi, M, Crovetto, A, Whelan, P R, Carvalho, A, Neto, A H C, Hofmann, P, Stenger, N, Bøggild, P & Booth, T J 2019, ' A universal approach for the synthesis of two-dimensional binary compounds ', Nature Communications, vol. 10, no. 1, 2957 . https://doi.org/10.1038/s41467-019-11075-2
Only a few of the vast range of potential two-dimensional materials (2D) have been isolated or synthesised to date. Typically, 2D materials are discovered by mechanically exfoliating naturally occurring bulk crystals to produce atomically thin layers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2838be84e9a0591809262018e408eadb
https://pure.au.dk/portal/da/publications/a-universal-approach-for-the-synthesis-of-twodimensional-binary-compounds(dd1080b6-8c52-4cca-81e9-4c7256c19ffd).html
https://pure.au.dk/portal/da/publications/a-universal-approach-for-the-synthesis-of-twodimensional-binary-compounds(dd1080b6-8c52-4cca-81e9-4c7256c19ffd).html
Autor:
Patrick Rebsdorf Whelan, Peter Uhd Jepsen, Wlodek Strupinski, Peter Bøggild, Iwona Pasternak, Xiaojing Zhao
Publikováno v:
Microelectronic Engineering
Whelan, P R, Zhao, X, Pasternak, I, Strupinski, W, Jepsen, P U & Bøggild, P 2019, ' Non-contact mobility measurements of graphene on silicon carbide ', Microelectronic Engineering, vol. 212, pp. 9-12 . https://doi.org/10.1016/j.mee.2019.03.022
Whelan, P R, Zhao, X, Pasternak, I, Strupinski, W, Jepsen, P U & Bøggild, P 2019, ' Non-contact mobility measurements of graphene on silicon carbide ', Microelectronic Engineering, vol. 212, pp. 9-12 . https://doi.org/10.1016/j.mee.2019.03.022
Non-invasive measurement techniques are of utmost importance for characterization of atomically thin materials to speed up the measurement process while avoiding mechanical damage or contamination of the fragile materials. Terahertz time-domain spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::335d1d210998f6d597b8dd2b5db4c66e
Autor:
Timothy J. Booth, Patrick Rebsdorf Whelan, Abhay Shivayogimath, Birong Luo, Peter Bøggild, David M. A. Mackenzie
Publikováno v:
Luo, B, Whelan, P R, Shivayogimath, A, Mackenzie, D, Bøggild, P & Booth, T 2016, ' Copper Oxidation through Nucleation Sites of Chemical Vapor Deposited Graphene ', Chemistry of Materials, vol. 28, no. 11, pp. 3789-3795 . https://doi.org/10.1021/acs.chemmater.6b00752
Chemistry of Materials
Chemistry of Materials
We investigate the nucleation defect-triggered oxidation of Cu covered by CVD graphene during postannealing in air. The results reveal that different growth conditions may induce imperfect nucleation of graphene, and cause creation of defects near th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5ddf8030007fec88ad2300535c6986b
https://doi.org/10.1021/acs.chemmater.6b00752
https://doi.org/10.1021/acs.chemmater.6b00752