Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System

The stability of organic semiconductors is an important topic, which in the case of organic thermoelectrics (OTEs), has not yet got the attention it deserves. This work presents a simple method which allows to characterize the stability of OTEs, using patterned ITO substrates to electrically contact...

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Autores: Abdallah, Fatma, Ciammaruchi, Laura, Jiménez Arguijo, Álex, Duraia, El-Shazly M., Ragab, Hossam. S., Dörling, Bernhard, Campoy Quiles, Mariano
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/212124
Acceso en línea:http://hdl.handle.net/10261/212124
Access Level:acceso abierto
Palabra clave:Carbon nanotubes
Degradation
n‐doping
Organic thermoelectricity
Stability
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spelling Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model SystemAbdallah, FatmaCiammaruchi, LauraJiménez Arguijo, ÁlexDuraia, El-Shazly M.Ragab, Hossam. S.Dörling, BernhardCampoy Quiles, MarianoCarbon nanotubesDegradationn‐dopingOrganic thermoelectricityStabilityThe stability of organic semiconductors is an important topic, which in the case of organic thermoelectrics (OTEs), has not yet got the attention it deserves. This work presents a simple method which allows to characterize the stability of OTEs, using patterned ITO substrates to electrically contact encapsulated samples. The method is applied to n‐doped carbon nanotube films, a well‐suited reference system due to their sensitivity to changes in doping level, and used to compare the effectiveness of different encapsulation methods. In the observed films, oxygen adsorption leads to a gradual p‐doping. Among the investigated barrier materials, glass performs best. Flexible alternatives like transferred films of barrier polymers also show promise, while barrier films deposited by dropcast performed worse, likely due to their inhomogeneity. Finally, Raman imaging is shown to be a useful technique to investigate degradation in OTEs.The authors would like to thank Aleksandr Perevedentsev for advice with the EVOH film transfer. The authors acknowledge financial support from the Spanish Ministry of Economy, Industry, and Competitiveness through the “Severo Ochoa” Program for Centers of Excellence in R&D (SEV‐2015‐0496), MAT2015‐70850‐P, and from the Generalitat de Catalunya through AGAUR 2018 PROD 00191; from CSIC through project 201560I032; and from the European Research Council (ERC) under grant agreement no. 648901. F.A., E.‐S.M.D., and H.S.R would like to acknowledge the Ministry of Higher Education (MOHE) of Egypt, the National Bank of Egypt and Banque Misr for funding the fellowship to conduct this study.Peer reviewedWiley-VCHMinisterio de Economía, Industria y Competitividad (España)Generalitat de CatalunyaConsejo Superior de Investigaciones Científicas (España)European Research CouncilConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/212124reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2015-0496info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-70850-Pinfo:eu-repo/grantAgreement/EC/H2020/648901http://dx.doi.org/10.1002/admt.202000256Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2121242026-05-22T06:33:51Z
dc.title.none.fl_str_mv Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
title Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
spellingShingle Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
Abdallah, Fatma
Carbon nanotubes
Degradation
n‐doping
Organic thermoelectricity
Stability
title_short Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
title_full Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
title_fullStr Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
title_full_unstemmed Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
title_sort Investigating Thermoelectric Stability under Encapsulation Using PEI-Doped CNT Films as a Model System
dc.creator.none.fl_str_mv Abdallah, Fatma
Ciammaruchi, Laura
Jiménez Arguijo, Álex
Duraia, El-Shazly M.
Ragab, Hossam. S.
Dörling, Bernhard
Campoy Quiles, Mariano
author Abdallah, Fatma
author_facet Abdallah, Fatma
Ciammaruchi, Laura
Jiménez Arguijo, Álex
Duraia, El-Shazly M.
Ragab, Hossam. S.
Dörling, Bernhard
Campoy Quiles, Mariano
author_role author
author2 Ciammaruchi, Laura
Jiménez Arguijo, Álex
Duraia, El-Shazly M.
Ragab, Hossam. S.
Dörling, Bernhard
Campoy Quiles, Mariano
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía, Industria y Competitividad (España)
Generalitat de Catalunya
Consejo Superior de Investigaciones Científicas (España)
European Research Council
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Carbon nanotubes
Degradation
n‐doping
Organic thermoelectricity
Stability
topic Carbon nanotubes
Degradation
n‐doping
Organic thermoelectricity
Stability
description The stability of organic semiconductors is an important topic, which in the case of organic thermoelectrics (OTEs), has not yet got the attention it deserves. This work presents a simple method which allows to characterize the stability of OTEs, using patterned ITO substrates to electrically contact encapsulated samples. The method is applied to n‐doped carbon nanotube films, a well‐suited reference system due to their sensitivity to changes in doping level, and used to compare the effectiveness of different encapsulation methods. In the observed films, oxygen adsorption leads to a gradual p‐doping. Among the investigated barrier materials, glass performs best. Flexible alternatives like transferred films of barrier polymers also show promise, while barrier films deposited by dropcast performed worse, likely due to their inhomogeneity. Finally, Raman imaging is shown to be a useful technique to investigate degradation in OTEs.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/212124
url http://hdl.handle.net/10261/212124
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2015-0496
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-70850-P
info:eu-repo/grantAgreement/EC/H2020/648901
http://dx.doi.org/10.1002/admt.202000256
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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