R
Roberto Urcuyo
Researcher at University of Costa Rica
Publications - 17
Citations - 236
Roberto Urcuyo is an academic researcher from University of Costa Rica. The author has contributed to research in topics: Graphene & Catalysis. The author has an hindex of 7, co-authored 15 publications receiving 179 citations. Previous affiliations of Roberto Urcuyo include Max Planck Society.
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Thin-layer black phosphorus/GaAs heterojunction p-n diodes
TL;DR: In this article, the p-n heterojunction diodes with thin black phosphorus layers are interfaced with an underlying, highly n-doped GaAs substrate, and the observed maximum open circuit voltage of 0.6 V is consistent with the band gap estimated for a black phosphorus sheet with a thickness on the order of 10nm.
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High Performance Graphene–Oxide–Metal Diode through Bias-Induced Barrier Height Modulation
TL;DR: In this paper, the authors present a Web of Science Record created on 2016-11-21, modified on 2017-05-12.Reference EPFL-ARTICLE-223319
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Chemical modification of graphene via hyperthermal molecular reaction.
Girjesh Dubey,Roberto Urcuyo,Sabine Abb,Gordon Rinke,Marko Burghard,Stephan Rauschenbach,Klaus Kern,Klaus Kern +7 more
TL;DR: This facile approach for the controlled modification of graphene extends the scope of candidate species that would not otherwise react via existing conventional methods.
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Self-assembly of a catechol-based macrocycle at the liquid–solid interface: experiments and molecular dynamics simulations
Javier Saiz-Poseu,Alberto Martínez-Otero,Thomas J. Roussel,Joseph K.-H. Hui,Mavis L. Montero,Roberto Urcuyo,Mark J. MacLachlan,Jordi Faraudo,Daniel Ruiz-Molina +8 more
TL;DR: This combined experimental (STM, XPS) and molecular dynamics simulation study highlights the complex and subtle interplay of solvent effects and surface interactions on the 2-D self-assembly pattern of a Schiff-base macrocycle containing catechol moieties at the liquid-solid interface.
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Electric-field control of single-molecule tautomerization
Shai Mangel,Maxim Skripnik,Maxim Skripnik,Katharina Polyudov,Christian Dette,Tobias Wollandt,Paul Punke,Dongzhe Li,Roberto Urcuyo,Fabian Pauly,Fabian Pauly,Soon Jung Jung,Klaus Kern,Klaus Kern +13 more
TL;DR: By combining a graphene field-effect transistor and a gate-tunable scanning tunneling microscope (STM), this strategy enables the intramolecular H atom transfer of a metal-free macrocycle to be controlled with an external field.