[Inageneral] Seminario Dpto. FMC - viernes 28 de febrero
Raúl Mendoza
rmendoza en unizar.es
Mar Feb 25 08:43:11 CET 2020
*Título: *2D semiconductors for optoelectronic and straintronics
*Ponente: *Andrés Castellanos-Gómez (Instituto de Ciencia de Materiales
de Madrid, CSIC)
*Lugar: *Sala de Grados de la Facultad de Ciencias*
**
Fecha y hora: *Viernes 28 de febrero a las 12:30
*Resumen de la charla:* In this seminar I will give a tutorial on 2D
semiconducting materials and I will motivate their interest in
optoelectronic and straintronic applications. The first half of the talk
will be devoted to provide a general background about 2D materials: why
to study them, how to fabricate them, how to handle them, how to
fabricate devices out of them, etc. In the last part of the talk I will
explain how 2D semiconductors are very appealing because of their
optoelectronic properties and how the combination between these
optoelectronic properties and their unique mechanical properties makes
them extremely interesting for the emerging field of straintronics.
Strain engineering is an interesting strategy to tune a material’s
electronic properties by subjecting its lattice to a mechanical
deformation. Conventional straining approaches, used for 3D materials
are typically limited to strains lower than 2% in most cases due to the
low maximum strains sustained by brittle bulk semiconducting materials.
2D materials can be literally stretched, folded, bent or even pierced.
This outstanding stretchability (and the possibility of using
dynamically varying strain) of 2D materials promises to revolutionize
the field of strain engineering and could lead to "straintronic" devices
– devices with electronic and optical properties that are engineered
through the introduction of mechanical deformations.
*Resumen CV: *Dr. Andres Castellanos-Gomez is a Tenured Scientist in the
Spanish National Research Council (CSIC). He explores novel 2D materials
and studies their mechanical, electrical and optical properties with
special interest on the application of these materials in nanomechanical
and optoelectronic devices. He was awarded an ERC Starting Grant in 2017
and has been included in the Highly Cited Researchers 2018 list of
Clarivate/WOS and selected as one of the Top Ten Spanish Talents of 2017
by the MIT Technology Reviews. He has been also recognized with the
Young Researcher Award (experimental physics) of the Royal Physical
Society of Spain (2016).*
*
--
Dr. Fernando López-Tejeira Sagüés
Dpto. de Física de la Materia Condensada
Escuela de Ingeniería y Arquitectura
Universidad de Zaragoza
María de Luna, 3
E-50018 Zaragoza, Spain
e-mail:flt en unizar.es
web:http://personal.unizar.es/flt
Phone: +34 876555185; Fax: +34 976761861
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