Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
dc.contributor.author | Ghasemi, Foad | |
dc.contributor.author | Frisenda, Riccardo | |
dc.contributor.author | Flores, Eduardo | |
dc.contributor.author | Papadopoulos, Nikos | |
dc.contributor.author | Biele, Robert | |
dc.contributor.author | Perez de Lara, David | |
dc.contributor.author | Van der Zant, Herre S. J. | |
dc.contributor.author | Watanabe, Kenji | |
dc.contributor.author | Taniguchi, Takashi | |
dc.contributor.author | D’Agosta, Roberto | |
dc.contributor.author | Ares, Jose R. | |
dc.contributor.author | Sánchez, Carlos | |
dc.contributor.author | Ferrer, Isabel J. | |
dc.contributor.author | Castellanos Gómez, Andrés | |
dc.date.accessioned | 2020-05-19T14:30:00Z | |
dc.date.available | 2020-05-19T14:30:00Z | |
dc.date.issued | 2020-04-09 | |
dc.identifier.citation | Nanomaterials 10(4) : (2020) // Article ID 711 | es_ES |
dc.identifier.issn | 2079-4991 | |
dc.identifier.uri | http://hdl.handle.net/10810/43275 | |
dc.description.abstract | In two-dimensional materials research, oxidation is usually considered as a common source for the degradation of electronic and optoelectronic devices or even device failure. However, in some cases a controlled oxidation can open the possibility to widely tune the band structure of 2D materials. In particular, we demonstrate the controlled oxidation of titanium trisulfide (TiS3), a layered semicon-ductor that has attracted much attention recently thanks to its quasi-1D electronic and optoelectron-ic properties and its direct bandgap of 1.1 eV. Heating TiS3 in air above 300 °C gradually converts it into TiO2, a semiconductor with a wide bandgap of 3.2 eV with applications in photo-electrochemistry and catalysis. In this work, we investigate the controlled thermal oxidation of indi-vidual TiS3 nanoribbons and its influence on the optoelectronic properties of TiS3-based photodetec-tors. We observe a step-wise change in the cut-off wavelength from its pristine value ~1000 nm to 450 nm after subjecting the TiS3 devices to subsequent thermal treatment cycles. Ab-initio and many-body calculations confirm an increase in the bandgap of titanium oxysulfide (TiO2-xSx) when in-creasing the amount of oxygen and reducing the amount of sulfur. | es_ES |
dc.description.sponsorship | A.C.-G. acknowledges funding from the European Commission under the Graphene Flagship, contract CNECTICT-604391. R.F. acknowledges support from the Netherlands Organisation for Scientific Research (NWO) through the research program Rubicon with project number 680-50-1515. R.B. acknowledges funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No. 793318. R.B. and R.D. acknowledge financial support by SElecT-DFT (Grant No. FIS2016-79464-P) of the Spanish Ministerio de Economia y Competitividad through the Agencia Estatal de Investigacion and the Fondo Europeo de Desarrollo Regional and Grupo Consolidado UPV/EHU del Gobierno Vasco (IT578-13). MIRE Group acknowledges funding from MINECO-FEDER through the project MAT2015-65203-R. K.W. and T.T. acknowledge the support of the Elemental Strategy Initiative conducted by the MEXT, Japan and the CREST (JPMJCR15F3), JST. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/793318 | es_ES |
dc.relation | info:eu-repo/grantAgreement/FP7-ICT 604391 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/FIS2016-79464-P | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2015-65203-R | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | 2D materials | es_ES |
dc.subject | photodetectors | es_ES |
dc.subject | oxidation | es_ES |
dc.subject | TiS3 | es_ES |
dc.subject | TiO2 | es_ES |
dc.subject | Raman spectroscopy | es_ES |
dc.subject | DFT GW | es_ES |
dc.title | Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2 | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2020-05-14T13:56:22Z | |
dc.rights.holder | 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2079-4991/10/4/711 | es_ES |
dc.identifier.doi | 10.3390/nano10040711 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Física de materiales | |
dc.departamentoeu | Materialen fisika |
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Except where otherwise noted, this item's license is described as 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).