| Autor: |
Taehee Yoo, Eungkyu Lee, Sining Dong, Xiang Li, Xinyu Liu, Jacek K. Furdyna, Margaret Dobrowolska, Tengfei Luo |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
APL Materials, Vol 5, Iss 6, Pp 066101-066101-7 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2166-532X |
| DOI: |
10.1063/1.4984974 |
| Popis: |
We studied the thermal conductivity of Bi2Se3, Bi2Te3, and their alloy Bi2(SexTe1−x)3 at room temperature using time-domain thermoreflectance measurements. The Bi2(SexTe1−x)3 films with various concentrations of Se and Te prepared by molecular beam epitaxy on GaAs substrates were investigated to study the dependence of thermal conductivity on film composition. We observed that the Bi2(SexTe1−x)3 ternary alloys can have much lower thermal conductivity values compared to those of Bi2Se3 and Bi2Te3. These results may provide useful information for developing and engineering low thermal conductivity materials for thermoelectric applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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