Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method
Lead telluride (PbTe) films have been prepared on glass substrates by flash evaporation method. Structure of the film is found to possess stable face-centered cubic (fcc) NaCl phase in which the grains predominantly grow in the direction of (200) plane. The calculated grain size was in the range 19 ...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/763209 |
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| author | Lakshmanan Kungumadevi Ramakrishnan Sathyamoorthy |
| author_facet | Lakshmanan Kungumadevi Ramakrishnan Sathyamoorthy |
| author_sort | Lakshmanan Kungumadevi |
| collection | DOAJ |
| description | Lead telluride (PbTe) films have been prepared on glass substrates by flash evaporation method. Structure of the film is found to possess stable face-centered cubic (fcc) NaCl phase in which the grains predominantly grow in the direction of (200) plane. The calculated grain size was in the range 19 nm. The electrical resistivity as a function of temperature was measured using four-probe technique. The electrical conductivity was calculated, and the value is found to be from 67.11 to 344.82 S/cm in the temperature range 303–453 K. The value of mobility was evaluated, and it is found to be 0.329×10-3 cm2·V−1 S−1. An optical study reveals that the PbTe thin films exhibit large blue shift. The optical constants such as absorption coefficient and refractive index have been estimated, and the results are discussed. |
| format | Article |
| id | doaj-art-4b05912bd3414ec78817270dc9f57e51 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-4b05912bd3414ec78817270dc9f57e512025-02-03T01:10:49ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242012-01-01201210.1155/2012/763209763209Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation MethodLakshmanan Kungumadevi0Ramakrishnan Sathyamoorthy1PG and Research Department of Physics, Kongunadu Arts and Science College, Tamilnadu Coimbatore 641 029, IndiaPG and Research Department of Physics, Kongunadu Arts and Science College, Tamilnadu Coimbatore 641 029, IndiaLead telluride (PbTe) films have been prepared on glass substrates by flash evaporation method. Structure of the film is found to possess stable face-centered cubic (fcc) NaCl phase in which the grains predominantly grow in the direction of (200) plane. The calculated grain size was in the range 19 nm. The electrical resistivity as a function of temperature was measured using four-probe technique. The electrical conductivity was calculated, and the value is found to be from 67.11 to 344.82 S/cm in the temperature range 303–453 K. The value of mobility was evaluated, and it is found to be 0.329×10-3 cm2·V−1 S−1. An optical study reveals that the PbTe thin films exhibit large blue shift. The optical constants such as absorption coefficient and refractive index have been estimated, and the results are discussed.http://dx.doi.org/10.1155/2012/763209 |
| spellingShingle | Lakshmanan Kungumadevi Ramakrishnan Sathyamoorthy Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method Advances in Condensed Matter Physics |
| title | Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method |
| title_full | Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method |
| title_fullStr | Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method |
| title_full_unstemmed | Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method |
| title_short | Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method |
| title_sort | structural electrical and optical properties of pbte thin films prepared by simple flash evaporation method |
| url | http://dx.doi.org/10.1155/2012/763209 |
| work_keys_str_mv | AT lakshmanankungumadevi structuralelectricalandopticalpropertiesofpbtethinfilmspreparedbysimpleflashevaporationmethod AT ramakrishnansathyamoorthy structuralelectricalandopticalpropertiesofpbtethinfilmspreparedbysimpleflashevaporationmethod |