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| Field | Value |
| Title | Improvement in Thermoelectric Properties by Tailoring at In and Te Site in In2Te5 |
| Names |
SANCHELA, AV
THAKUR, AD TOMY, CV |
| Date Issued | 2016 (iso8601) |
| Abstract | We study the role of substitutions at In and Te site in the thermoelectric behavior of In2Te5. Single crystals with compositions In-2(Te1-x Se (x) )(5) (x = 0, 0.05, 0.10) and Fe0.05In1.95(Te0.90Se0.10)(5) were prepared using a modified Bridgman-Stockbarger technique. Electrical and thermal transport properties of these single crystals were measured in the temperature range of 6 K to 395 K. A substantial decrease in the thermal conductivity was observed in Fe-substituted samples, attributed to enhanced phonon scattering at point defects. Marked enhancement in the Seebeck coefficient S along with concomitant suppression of the electrical resistivity rho was observed in Se-substituted single crystals. An overall enhancement of the thermoelectric figure of merit (zT) by a factor of 310 was observed in single-crystal Fe0.05In1.95(Te0.90Se0.10)(5) compared with single crystals of the parent material In2Te5. |
| Genre | Article |
| Topic | CONDUCTIVITY |
| Identifier | JOURNAL OF ELECTRONIC MATERIALS,45(11)5540-5545 |