Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Brivio, Federico"'
Publikováno v:
A peer reviewed version of this work has been published on Appl. Phys. Lett. 10 July 2023; 123 (2): 022104
We present first-principles calculations of the interface between GaN and strained AlN, using a slab model in which polarization is compensated via surface fractional-charge pseudo-hydrogen atoms. We show that an interface two-dimensional carrier ele
Externí odkaz:
http://arxiv.org/abs/2303.03842
Quasi one-dimensional (1D) vanadium tetrasulfide ($VS_4$) nanowires (NWs) are synthetic semiconductors which combine with each other through Van der Waals interactions to form bulk phases. However, the properties of these individual nanowires remain
Externí odkaz:
http://arxiv.org/abs/2101.12658
MXenes are 2D transition metal carbides with high potential for overcoming limitations of conventional two-dimensional electronics. In this context, various MXenes have shown magnetic properties suitable for applications in spintronics, yet the numbe
Externí odkaz:
http://arxiv.org/abs/1910.01509
Autor:
Brivio, Federico
This thesis focuses on the study of hybrid perovskites properties for the purposes of photovoltaic applications. During the almost four years PhD project that has lead to this thesis the record photovoltaic efficiency for this technology has in- crea
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698992
Autor:
Wei, Fengxia, Brivio, Federico, Wu, Yue, Sun, Shijing, Bristowe, Paul D., Cheetham, Anthony K.
The diversity of halide materials related to important solar energy systems such as CsPbX3 (X = Cl, Br, I) is explored by introducing the transition metal element Fe. In particular a new compound, Cs3Fe2Br9 (space group P6_3/mmc with a = 7.5427(8) an
Externí odkaz:
http://arxiv.org/abs/1710.07514
Autor:
Pering, Samuel R., Deng, Wentao, Troughton, Joel R., Niemann, Ralf G., Brivio, Federico, Kubiak, Peter S., Jeffrey, Florence E., Watson, Trystan M., Raithby, Paul. R., Johnson, Andrew L., Lewis, Simon E., Cameron, PJ.
Hybrid organic-inorganic perovskites have been established as good candidate materials for emerging photovoltaics, with device efficiencies of over 22 % being reported. There are currently only two organic cations, methylammonium and formamidinium, w
Externí odkaz:
http://arxiv.org/abs/1703.07240
Autor:
Leguy, Aurélien M. A., Goñi, Alejandro R., Frost, Jarvist M., Skelton, Jonathan, Brivio, Federico, Rodríguez-Martínez, Xabier, Weber, Oliver J., Pallipurath, Anuradha, Alonso, M. Isabel, Campoy-Quiles, Mariano, Weller, Mark T., Nelson, Jenny, Walsh, Aron, Barnes, Piers R. F.
We present Raman and terahertz absorbance spectra of methylammonium lead halide single crystals (MAPbX3, X = I, Br, Cl) at temperatures between 80 and 370 K. These results show good agreement with density-functional-theory phonon calculations.1 Compa
Externí odkaz:
http://arxiv.org/abs/1606.01841
Autor:
Brivio, Federico, Frost, Jarvist M., Skelton, Jonathan M., Jackson, Adam J., Weber, Oliver J., Weller, Mark T., Goni, Alejandro R., Leguy, Aurelien M. A., Barnes, Piers R. F., Walsh, Aron
Publikováno v:
Phys. Rev. B 92, 144308 (2015)
The hybrid halide perovskite CH3NH3PbI3 exhibits a complex structural behaviour, with successive transitions between orthorhombic, tetragonal and cubic polymorphs at ca. 165 K and 327 K. Herein we report first-principles lattice dynamics (phonon spec
Externí odkaz:
http://arxiv.org/abs/1504.07508
Akademický článek
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Autor:
Frost, Jarvist M., Butler, Keith T., Brivio, Federico, Hendon, Christopher H., van Schilfgaarde, Mark, Walsh, Aron
The performance of organometallic perovskite solar cells has rapidly surpassed that of both conventional dye-sensitised and organic photovoltaics. High power conversion efficiency can be realised in both mesoporous and thin-film device architectures.
Externí odkaz:
http://arxiv.org/abs/1402.4980