Zobrazeno 1 - 10
of 25
pro vyhledávání: '"P H, Beton"'
Autor:
Oleg Makarovsky, Richard J. A. Hill, Tin S. Cheng, Alex Summerfield, Takeshi Taniguchi, Kenji Watanabe, Christopher J. Mellor, Amalia Patanè, Laurence Eaves, Sergei V. Novikov, Peter H. Beton
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-6 (2024)
Abstract Graphene placed on hexagonal boron nitride (hBN) has received significant interest due to its excellent electrical performance and physics phenomena, such as superlattice Dirac points. Direct molecular beam epitaxy growth of graphene on hBN
Externí odkaz:
https://doaj.org/article/313606db9c814b759d7f0958af45188d
Autor:
Kohei Shima, Tin S. Cheng, Christopher J. Mellor, Peter H. Beton, Christine Elias, Pierre Valvin, Bernard Gil, Guillaume Cassabois, Sergei V. Novikov, Shigefusa F. Chichibu
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract Cathodoluminescence (CL) spectroscopy is a suitable technique for studying the luminescent properties of optoelectronic materials because CL has no limitation on the excitable bandgap energy and eliminates ambiguous signals due to simple lig
Externí odkaz:
https://doaj.org/article/d9f906e2499b4a14b6b4e72c9ecf4f02
Autor:
Jessica Wade, James N. Hilfiker, Jochen R. Brandt, Letizia Liirò-Peluso, Li Wan, Xingyuan Shi, Francesco Salerno, Seán T. J. Ryan, Stefan Schöche, Oriol Arteaga, Tamás Jávorfi, Giuliano Siligardi, Cheng Wang, David B. Amabilino, Peter H. Beton, Alasdair J. Campbell, Matthew J. Fuchter
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Polymer thin films that emit and absorb circularly polarised light are promising in achieving important technological advances, but the origin of the large chiroptical effects in such films has remained elusive. Here the authors demonstrate that in n
Externí odkaz:
https://doaj.org/article/9344cd51013c4b71acb785b6376ee31b
Autor:
Alex Summerfield, Matteo Baldoni, Dmitry V. Kondratuk, Harry L. Anderson, Stephen Whitelam, Juan P. Garrahan, Elena Besley, Peter H. Beton
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
The packing of spheres, disks and other simple shapes into arrays on surfaces is relevant to many problems across the physical sciences. Here the authors study the influence of flexibility and reduced symmetry on the packing of porphyrin nanorings wh
Externí odkaz:
https://doaj.org/article/383ffbae53be4addad4ca140cdfc6403
Autor:
C. Elias, P. Valvin, T. Pelini, A. Summerfield, C. J. Mellor, T. S. Cheng, L. Eaves, C. T. Foxon, P. H. Beton, S. V. Novikov, B. Gil, G. Cassabois
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Insulating hexagonal boron nitride (hBN) is theoretically expected to undergo a crossover to a direct bandgap in the monolayer limit. Here, the authors perform optical spectroscopy measurements on atomically thin epitaxial hBN providing indications o
Externí odkaz:
https://doaj.org/article/37ee1074b78f488f83916006346b401a
Autor:
Vladimir V. Korolkov, Alex Summerfield, Alanna Murphy, David B. Amabilino, Kenji Watanabe, Takashi Taniguchi, Peter H. Beton
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Semiconducting polymers are widely used in optoelectronic devices, in which their microstructure informs function. Here, the authors are able to resolve the molecular and sub-molecular ordering of polythiophene strands and thin films using atomic for
Externí odkaz:
https://doaj.org/article/e2d529c4abd044c19242bdb612b95add
Autor:
G. Cassabois, G. Fugallo, C. Elias, P. Valvin, A. Rousseau, B. Gil, A. Summerfield, C. J. Mellor, T. S. Cheng, L. Eaves, C. T. Foxon, P. H. Beton, M. Lazzeri, A. Segura, S. V. Novikov
Publikováno v:
Physical Review X, Vol 12, Iss 1, p 011057 (2022)
The light-matter interaction in bulk semiconductors is in the strong-coupling regime with hybrid eigenstates, the so-called exciton polaritons and phonon polaritons. In two-dimensional (2D) systems, the translational invariance is broken in the direc
Externí odkaz:
https://doaj.org/article/da4eed7dc9d1474b89bea97bb5ddbc91
Autor:
Vladimir V. Korolkov, Ivan G. Timokhin, Rolf Haubrichs, Emily F. Smith, Lixu Yang, Sihai Yang, Neil R. Champness, Martin Schröder, Peter H. Beton
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Few-layered black phosphorus has been exploited in transistors and other devices, but its poor stability under ambient conditions remains problematic. Here, a UK-Swiss collaboration show that a monolayer-thick supramolecular hydrogen-bonded network c
Externí odkaz:
https://doaj.org/article/90536733dff54d59a28dcc017c55a9fe
Autor:
J. D. Albar, A. Summerfield, T. S. Cheng, A. Davies, E. F. Smith, A. N. Khlobystov, C. J. Mellor, T. Taniguchi, K. Watanabe, C. T. Foxon, L. Eaves, P. H. Beton, S. V. Novikov
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract We report the use of a novel atomic carbon source for the molecular beam epitaxy (MBE) of graphene layers on hBN flakes and on sapphire wafers at substrate growth temperatures of ~1400 °C. The source produces a flux of predominantly atomic
Externí odkaz:
https://doaj.org/article/3129cbf984284527ac9876d7d8fbcca0
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 5, Iss 1, Pp 394-401 (2014)
We show that thin films of C60 with a thickness ranging from 10 to 100 nm can promote adhesion between a Au thin film deposited on mica and a solution-deposited layer of the elastomer polymethyldisolaxane (PDMS). This molecular adhesion facilitates t
Externí odkaz:
https://doaj.org/article/b30ac55068d548c39a885bbdc679f493