Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital
Dependences of the structural characteristics and electrical properties of thin films of PbTe-Bi2Te3 solid solutions with compositions of 1,3,5 ml. % of Bi2Te3 deposited in an open vacuum on the sital substrates on their thickness d (0,2-2) microns were studied. The effective mean free path of c...
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| Format: | Article |
| Language: | English |
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Sumy State University
2013-10-01
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| Series: | Журнал нано- та електронної фізики |
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| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2013/3/articles/jnep_2013_V5_03054.pdf |
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| author | D.M. Freik B.S. Dzundza J.S. Yavorskyy I.S. Bylina T.S. Lyuba |
| author_facet | D.M. Freik B.S. Dzundza J.S. Yavorskyy I.S. Bylina T.S. Lyuba |
| author_sort | D.M. Freik |
| collection | DOAJ |
| description | Dependences of the structural characteristics and electrical properties of thin films of PbTe-Bi2Te3 solid solutions with compositions of 1,3,5 ml. % of Bi2Te3 deposited in an open vacuum on the sital substrates on their thickness d (0,2-2) microns were studied. The effective mean free path of charge carriers is defined and the dominant mechanism of scattering is found. The values of thermoelectric parameters of the near-surface layers are estimated within the two-layer Petritz model. It is stablished that condensate is characterized by a stable n-type conductivity, and there is a diffuse scattering on the surface that conditions a significant decrease in the magnitude of mobility (s), conductivity (s), and increase in the Seebeck coefficient (Ss) with respect to the film volume. The obtained results are explained by acceptor influence of atmospheric oxygen and throttling of charge carriers on potential barriers of the interfaces. |
| format | Article |
| id | doaj-art-eb6ddeadab124467b351611e3e7cb726 |
| institution | DOAJ |
| issn | 2077-6772 |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Sumy State University |
| record_format | Article |
| series | Журнал нано- та електронної фізики |
| spelling | doaj-art-eb6ddeadab124467b351611e3e7cb7262025-08-20T03:21:16ZengSumy State UniversityЖурнал нано- та електронної фізики2077-67722013-10-015303054-103054-6Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on SitalD.M. Freik0B.S. Dzundza1J.S. Yavorskyy2I.S. Bylina3T.S. Lyuba4Vasyl Stefanyk PreCarpathian National University, 57, Shevchenko Str., 76025 Ivano-Frankivsk, UkraineVasyl Stefanyk PreCarpathian National University, 57, Shevchenko Str., 76025 Ivano-Frankivsk, UkraineVasyl Stefanyk PreCarpathian National University, 57, Shevchenko Str., 76025 Ivano-Frankivsk, UkraineVasyl Stefanyk PreCarpathian National University, 57, Shevchenko Str., 76025 Ivano-Frankivsk, UkraineKamenetz-Podolsk National University, 61, Ogienko Str., 32300 Kamenetz-Podolsk, UkraineDependences of the structural characteristics and electrical properties of thin films of PbTe-Bi2Te3 solid solutions with compositions of 1,3,5 ml. % of Bi2Te3 deposited in an open vacuum on the sital substrates on their thickness d (0,2-2) microns were studied. The effective mean free path of charge carriers is defined and the dominant mechanism of scattering is found. The values of thermoelectric parameters of the near-surface layers are estimated within the two-layer Petritz model. It is stablished that condensate is characterized by a stable n-type conductivity, and there is a diffuse scattering on the surface that conditions a significant decrease in the magnitude of mobility (s), conductivity (s), and increase in the Seebeck coefficient (Ss) with respect to the film volume. The obtained results are explained by acceptor influence of atmospheric oxygen and throttling of charge carriers on potential barriers of the interfaces.http://jnep.sumdu.edu.ua/download/numbers/2013/3/articles/jnep_2013_V5_03054.pdfFilms of PbTe-Bi2Te3 solid solutionThermoelectric propertiesScattering mechanism |
| spellingShingle | D.M. Freik B.S. Dzundza J.S. Yavorskyy I.S. Bylina T.S. Lyuba Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital Журнал нано- та електронної фізики Films of PbTe-Bi2Te3 solid solution Thermoelectric properties Scattering mechanism |
| title | Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital |
| title_full | Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital |
| title_fullStr | Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital |
| title_full_unstemmed | Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital |
| title_short | Transport Phenomena in the Vapor-phase PbTe-Bi2Te3 Condensates on Sital |
| title_sort | transport phenomena in the vapor phase pbte bi2te3 condensates on sital |
| topic | Films of PbTe-Bi2Te3 solid solution Thermoelectric properties Scattering mechanism |
| url | http://jnep.sumdu.edu.ua/download/numbers/2013/3/articles/jnep_2013_V5_03054.pdf |
| work_keys_str_mv | AT dmfreik transportphenomenainthevaporphasepbtebi2te3condensatesonsital AT bsdzundza transportphenomenainthevaporphasepbtebi2te3condensatesonsital AT jsyavorskyy transportphenomenainthevaporphasepbtebi2te3condensatesonsital AT isbylina transportphenomenainthevaporphasepbtebi2te3condensatesonsital AT tslyuba transportphenomenainthevaporphasepbtebi2te3condensatesonsital |