Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2

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...

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Autores: Ghasemi, Foad, Frisenda, Riccardo, Flores, Eduardo, Papadopoulos, Nikos, Biele, Robert, Perez de Lara, David, Van der Zant, Herre S. J., Watanabe, Kenji, Taniguchi, Takashi, D’Agosta, Roberto, Ares, Jose R., Sánchez, Carlos, Ferrer, Isabel J., Castellanos Gómez, Andrés
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/43275
Acceso en línea:http://hdl.handle.net/10810/43275
Access Level:acceso abierto
Palabra clave:2D materials
photodetectors
oxidation
TiS3
TiO2
Raman spectroscopy
DFT GW
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spelling Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2Ghasemi, FoadFrisenda, RiccardoFlores, EduardoPapadopoulos, NikosBiele, RobertPerez de Lara, DavidVan der Zant, Herre S. J.Watanabe, KenjiTaniguchi, TakashiD’Agosta, RobertoAres, Jose R.Sánchez, CarlosFerrer, Isabel J.Castellanos Gómez, Andrés2D materialsphotodetectorsoxidationTiS3TiO2Raman spectroscopyDFT GWIn 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.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.MDPIEuropean Commission2020202020202020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/43275reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/793318info:eu-repo/grantAgreement/FP7-ICT 604391//info:eu-repo/grantAgreement/MINECO/FIS2016-79464-P/info:eu-repo/grantAgreement/MINECO/MAT2015-65203-R/https://www.mdpi.com/2079-4991/10/4/711info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/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/).oai:addi.ehu.eus:10810/432752026-06-18T09:23:17Z
dc.title.none.fl_str_mv Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
title Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
spellingShingle Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
Ghasemi, Foad
2D materials
photodetectors
oxidation
TiS3
TiO2
Raman spectroscopy
DFT GW
title_short Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
title_full Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
title_fullStr Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
title_full_unstemmed Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
title_sort Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2
dc.creator.none.fl_str_mv Ghasemi, Foad
Frisenda, Riccardo
Flores, Eduardo
Papadopoulos, Nikos
Biele, Robert
Perez de Lara, David
Van der Zant, Herre S. J.
Watanabe, Kenji
Taniguchi, Takashi
D’Agosta, Roberto
Ares, Jose R.
Sánchez, Carlos
Ferrer, Isabel J.
Castellanos Gómez, Andrés
author Ghasemi, Foad
author_facet Ghasemi, Foad
Frisenda, Riccardo
Flores, Eduardo
Papadopoulos, Nikos
Biele, Robert
Perez de Lara, David
Van der Zant, Herre S. J.
Watanabe, Kenji
Taniguchi, Takashi
D’Agosta, Roberto
Ares, Jose R.
Sánchez, Carlos
Ferrer, Isabel J.
Castellanos Gómez, Andrés
author_role author
author2 Frisenda, Riccardo
Flores, Eduardo
Papadopoulos, Nikos
Biele, Robert
Perez de Lara, David
Van der Zant, Herre S. J.
Watanabe, Kenji
Taniguchi, Takashi
D’Agosta, Roberto
Ares, Jose R.
Sánchez, Carlos
Ferrer, Isabel J.
Castellanos Gómez, Andrés
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv 2D materials
photodetectors
oxidation
TiS3
TiO2
Raman spectroscopy
DFT GW
topic 2D materials
photodetectors
oxidation
TiS3
TiO2
Raman spectroscopy
DFT GW
description 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.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/43275
url http://hdl.handle.net/10810/43275
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/H2020/793318
info:eu-repo/grantAgreement/FP7-ICT 604391//
info:eu-repo/grantAgreement/MINECO/FIS2016-79464-P/
info:eu-repo/grantAgreement/MINECO/MAT2015-65203-R/
https://www.mdpi.com/2079-4991/10/4/711
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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