Size effects in thin n-PbTe films
The effect of the film thickness d on the Seebeck coefficient S, the Hall coefficient RH, electrical conductivity σ, charge carrier mobility μH and thermoelectric power factor S²σ of thin films (d = 7-235 nm) prepared by thermal evaporation of n-type PbTe polycrystals doped with InTe in vacuum onto...
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| Дата: | 2014 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2014
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| Назва видання: | Functional Materials |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119083 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Size effects in thin n-PbTe films / S.I.Men'shikova, E.I.Rogacheva, A.Yu.Sipatov, Ye.N.Zubarev // Functional Materials. — 2015. — Т. 22, № 1. — С. 14-19. — Бібліогр.: 19 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-119083 |
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dspace |
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irk-123456789-1190832017-06-04T03:02:49Z Size effects in thin n-PbTe films Men'shikova, S.I. Rogacheva, E.I. Sipatov, A.Yu. Zubarev, Ye.N. Characterization and properties The effect of the film thickness d on the Seebeck coefficient S, the Hall coefficient RH, electrical conductivity σ, charge carrier mobility μH and thermoelectric power factor S²σ of thin films (d = 7-235 nm) prepared by thermal evaporation of n-type PbTe polycrystals doped with InTe in vacuum onto (001)KCl substrates was investigated. It was established that at d ≈ 20 nm, an inversion of the conductivity type (p → n) occurs, which is attributed to a change in the thermodynamic equilibrium conditions in films as compared with bulk crystals and\or to partial re-evaporation of In atoms. In the thickness range d < 20 nm, extrema in the d-dependences of the properties are detected at d ≈ 13 nm, and at d > 20 nm, the thickness dependences of the properties exhibit an oscillatory behavior with the period Δ d ≈ 12 nm. The observed oscillatory character of the thickness dependences of the kinetic coefficients is attributed to the manifestation of quantum size effects. The theoretical S(d) dependence calculated in the approximation of size quantization taking into account d-dependences of the Fermi energy and a number of subbands is in good agreement with the experimental one with regard to the oscillation period. 2014-12-29 Article Size effects in thin n-PbTe films / S.I.Men'shikova, E.I.Rogacheva, A.Yu.Sipatov, Ye.N.Zubarev // Functional Materials. — 2015. — Т. 22, № 1. — С. 14-19. — Бібліогр.: 19 назв. — англ. 1027-5495 DOI: http://dx.doi.org/10.15407/fm22.01.014 http://dspace.nbuv.gov.ua/handle/123456789/119083 en Functional Materials НТК «Інститут монокристалів» НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Characterization and properties Characterization and properties |
| spellingShingle |
Characterization and properties Characterization and properties Men'shikova, S.I. Rogacheva, E.I. Sipatov, A.Yu. Zubarev, Ye.N. Size effects in thin n-PbTe films Functional Materials |
| description |
The effect of the film thickness d on the Seebeck coefficient S, the Hall coefficient RH, electrical conductivity σ, charge carrier mobility μH and thermoelectric power factor S²σ of thin films (d = 7-235 nm) prepared by thermal evaporation of n-type PbTe polycrystals doped with InTe in vacuum onto (001)KCl substrates was investigated. It was established that at d ≈ 20 nm, an inversion of the conductivity type (p → n) occurs, which is attributed to a change in the thermodynamic equilibrium conditions in films as compared with bulk crystals and\or to partial re-evaporation of In atoms. In the thickness range d < 20 nm, extrema in the d-dependences of the properties are detected at d ≈ 13 nm, and at d > 20 nm, the thickness dependences of the properties exhibit an oscillatory behavior with the period Δ d ≈ 12 nm. The observed oscillatory character of the thickness dependences of the kinetic coefficients is attributed to the manifestation of quantum size effects. The theoretical S(d) dependence calculated in the approximation of size quantization taking into account d-dependences of the Fermi energy and a number of subbands is in good agreement with the experimental one with regard to the oscillation period. |
| format |
Article |
| author |
Men'shikova, S.I. Rogacheva, E.I. Sipatov, A.Yu. Zubarev, Ye.N. |
| author_facet |
Men'shikova, S.I. Rogacheva, E.I. Sipatov, A.Yu. Zubarev, Ye.N. |
| author_sort |
Men'shikova, S.I. |
| title |
Size effects in thin n-PbTe films |
| title_short |
Size effects in thin n-PbTe films |
| title_full |
Size effects in thin n-PbTe films |
| title_fullStr |
Size effects in thin n-PbTe films |
| title_full_unstemmed |
Size effects in thin n-PbTe films |
| title_sort |
size effects in thin n-pbte films |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2014 |
| topic_facet |
Characterization and properties |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/119083 |
| citation_txt |
Size effects in thin n-PbTe films / S.I.Men'shikova, E.I.Rogacheva, A.Yu.Sipatov, Ye.N.Zubarev // Functional Materials. — 2015. — Т. 22, № 1. — С. 14-19. — Бібліогр.: 19 назв. — англ. |
| series |
Functional Materials |
| work_keys_str_mv |
AT menshikovasi sizeeffectsinthinnpbtefilms AT rogachevaei sizeeffectsinthinnpbtefilms AT sipatovayu sizeeffectsinthinnpbtefilms AT zubarevyen sizeeffectsinthinnpbtefilms |
| first_indexed |
2023-10-18T20:33:43Z |
| last_indexed |
2023-10-18T20:33:43Z |
| _version_ |
1796150522788446208 |