Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/71690
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Vieira, E. M. F | por |
dc.contributor.author | Figueira, Joana | por |
dc.contributor.author | Pires, Ana L. | por |
dc.contributor.author | Grilo, José | por |
dc.contributor.author | Silva, Manuel Fernando Ribeiro | por |
dc.contributor.author | Pereira, André M. | por |
dc.contributor.author | Gonçalves, L. M. | por |
dc.date.accessioned | 2021-04-14T11:12:35Z | - |
dc.date.issued | 2019-02-05 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://hdl.handle.net/1822/71690 | - |
dc.description | "Accepted Manuscript" | por |
dc.description.abstract | Improved thermoelectric properties of p-Sb2Te3 and n-Bi2Te3 films deposited by thermal co-evaporation at 503 K and 543 K, respectively, are reported, by using two types of substrate (borosilicate glass and 25 μm - Kapton® polyimide). Seebeck coefficients of 194 μV K−1 and - 233 μV K−1 and electrical conductivities of 3.2 × 104 (Ω m)−1 and 5.0 × 104 (Ω m)−1, lead to optimized power factors of 1.2 × 10−3 W K−2 m−1 and 2.7 × 10−3 W K−2 m−1, measured at 298 K, for flexible Sb2Te3 and Bi2Te3 films, respectively. The power factor value increases until a maximum of 2.3 × 10−3 W m−1 K−2 for the p-type film, and to 5.9 × 10−3 W m−1 K−2 for the n-type film, at 373 K, respectively. An improvement of more than two times on the power factor value is observed when compared with the actual state-of-art for flexible Sb2Te3 and Bi2Te3 films, at room temperature, with thickness below 1 μm. A flexible thermopile sensor based on p - n films is presented, into possible thermal sensing. The thermoelectric device shows a responsivity of 0.05 V W−1 and a specific detectivity of 1.6 × 107 cm √Hz W−1. | por |
dc.description.sponsorship | This work is supported by FCT with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 - Programa Operacional Competitividade e Internacionalização(POCI) with the reference project POCI-01-0145-FEDER-006941 and by the project PTDC/CTMeNAN/5414/2014 (POCI-01-0145-FEDER-016723). EMFV and JF is grateful forfinancial supportthrough the FCT grants SFRH/BPD/95905/2013 and SFRH/BD/121679/2016. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147325/PT | por |
dc.relation | POCI-01-0145-FEDER-006941 | por |
dc.relation | PTDC/CTMeNAN/5414/2014 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F95905%2F2013/PT | por |
dc.relation | SFRH/BD/121679/2016 | por |
dc.rights | restrictedAccess | por |
dc.subject | Bismuth Telluride | por |
dc.subject | Antimony telluride | por |
dc.subject | Kapton® substrate | por |
dc.subject | Thermoelectric effect | por |
dc.subject | Flexible Thermal Sensor | por |
dc.subject | Kapton (R) substrate | por |
dc.title | Enhanced thermoelectric properties of Sb<inf>2</inf>Te<inf>3</inf> and Bi<inf>2</inf>Te<inf>3</inf> films for flexible thermal sensors | por |
dc.title.alternative | Enhanced thermoelectric properties of Sb2Te3 and Bi2Te3 films for flexible thermal sensors | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0925838818335825 | por |
oaire.citationStartPage | 1102 | por |
oaire.citationEndPage | 1116 | por |
oaire.citationVolume | 774 | por |
dc.date.updated | 2021-04-09T14:51:57Z | - |
dc.identifier.doi | 10.1016/j.jallcom.2018.09.324 | por |
dc.date.embargo | 10000-01-01 | - |
dc.subject.wos | Science & Technology | - |
sdum.export.identifier | 10458 | - |
sdum.journal | Journal of Alloys and Compounds | por |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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vieira2019.pdf Acesso restrito! | 11,35 MB | Adobe PDF | Ver/Abrir |