Enhancing the Thermoelectric Properties of Layered Bi2O2Q (Q = S, Se): the Effect of Mixed Chalcogen Net
The layered semiconductors Bi 2 O 2 Q (Q = S, Se) consists of Bi 2 O 2 layers sandwiched by Q square nets. On the basis of density functional theory calculations, we examined the thermoelectric properties of Bi 2 O 2 S, Bi 2 O 2 Se as well as hypothetical structure of Bi 2 O 2 (S 0.5 Se 0.5 ) consis...
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| Veröffentlicht in: | Journal of the Korean Physical Society 2018, 73(11), , pp.1684-1690 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The layered semiconductors Bi
2
O
2
Q (Q = S, Se) consists of Bi
2
O
2
layers sandwiched by Q square nets. On the basis of density functional theory calculations, we examined the thermoelectric properties of Bi
2
O
2
S, Bi
2
O
2
Se as well as hypothetical structure of Bi
2
O
2
(S
0.5
Se
0.5
) consisting of mixed chalcogen nets. The thermoelectric power factor of Bi
2
O
2
S
0.5
Se
0.5
is much greater than those of Bi
2
O
2
S and Bi
2
O
2
Se, suggesting that introducing mixed chalcogen net in Bi
2
O
2
Q is a possible way of enhancing the thermoelectric property of Bi
2
O
2
Q. |
|---|---|
| ISSN: | 0374-4884 1976-8524 |
| DOI: | 10.3938/jkps.73.1684 |