Synthesis and Thermoelectric Properties in the 2D Ti1 – xNbxS3 Trichalcogenides
| العنوان: | Synthesis and Thermoelectric Properties in the 2D Ti1 – xNbxS3 Trichalcogenides |
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| المؤلفون: | Antoine Maignan, Oleg I. Lebedev, Patrick R. N. Misse, David Berthebaud, Emmanuel Guilmeau |
| المساهمون: | Laboratoire de cristallographie et sciences des matériaux (CRISMAT), École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Materials Materials, Vol 8, Iss 5, Pp 2514-2522 (2015) Materials, MDPI, 2015, 8 (5), pp.2514-2522. ⟨10.3390/ma8052514⟩ Volume 8 Issue 5 Pages 2514-2522 Materials, 2015, 8 (5), pp.2514-2522. ⟨10.3390/ma8052514⟩ |
| بيانات النشر: | MDPI, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Materials science, Analytical chemistry, Spark plasma sintering, 02 engineering and technology, 010402 general chemistry, thermoelectric, 01 natural sciences, lcsh:Technology, Article, Electrical resistivity and conductivity, Seebeck coefficient, Thermoelectric effect, [CHIM.CRIS]Chemical Sciences/Cristallography, [CHIM]Chemical Sciences, General Materials Science, thermal conductivity, lcsh:Microscopy, lcsh:QC120-168.85, lcsh:QH201-278.5, lcsh:T, transition metal sulfides, Doping, [CHIM.MATE]Chemical Sciences/Material chemistry, Atmospheric temperature range, 021001 nanoscience & nanotechnology, Thermoelectric materials, 0104 chemical sciences, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, titanium trisulfide, lcsh:TA1-2040, sulfur, electrical properties, lcsh:Descriptive and experimental mechanics, lcsh:Electrical engineering. Electronics. Nuclear engineering, 0210 nano-technology, lcsh:Engineering (General). Civil engineering (General), niobium, lcsh:TK1-9971, Solid solution |
| الوصف: | International audience; A solid solution of Ti1 - xNbxS3 composition (x = 0, 0.05, 0.07, 0.10) was synthesized by solid-liquid-vapor reaction followed by spark plasma sintering. The obtained compounds crystallize in the monoclinic ZrSe3 structure type. For the x = 0.07 sample, a mixture of both A and B variants of the MX3 structure is evidenced by transmission electron microscopy. This result contrasts with those of pristine TiS3, prepared within the same conditions, which crystallizes as a large majority of A variant. Thermoelectric properties were investigated in the temperature range 323 to 523 K. A decrease in the electrical resistivity and absolute value of the Seebeck coefficient is observed when increasing x due to electron doping. The lattice component of the thermal conductivity is effectively reduced by the Nb for Ti substitution through a mass fluctuation effect and/or a disorder effect created by the mixture of both A and B variants. Due to the low carrier concentration and the semiconductor character of the doped compounds, the too low power factor values leads to ZT values that remain smaller by a factor of 50 than those of the TiS2 layered compound. © 2015 by the authors; licensee MDPI, Basel, Switzerland. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1996-1944 |
| DOI: | 10.3390/ma8052514⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0810bcc2887f6d706ac4d974f62b83f http://europepmc.org/articles/PMC5455544 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....d0810bcc2887f6d706ac4d974f62b83f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19961944 |
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| DOI: | 10.3390/ma8052514⟩ |