Research Article
Ultrahigh Performance Piezoelectric Energy Harvester Using Lead-Free Piezoceramics with Large Electromechanical Coupling Factor
Table 2
Various parameters of the textured KN(N
1-zS
z)-BAZ-SZ piezoelectric ceramics (
) obtained from the Rietveld refinement.
| | Sb | Phase structure | Phase fraction (%) | Lattice parameters | (%) | (%) | | | a () | b () | c () | , , |
| | 0.00 | O-T | 90.7 (Amm2) | 3.9621 (3) | 5.6545 (4) | 5.6589 (4) | ° | 4.70 | 6.15 | 4.07 | | 9.3(P4mm) | 3.9751 (3) | 3.9751 (3) | 3.9764 (3) | ° | | | |
| | 0.01 | R-O-T | 4.8 (R3m; H) | 5.6635 (9) | 5.6635 (9) | 6.9955 (24) | °, ° | 3.84 | 4.86 | 2.39 | | 82.6 (Amm2) | 3.9655 (3) | 5.6503 (4) | 5.6535 (4) | ° | | | | | 12.6 (P4mm) | 3.9725 (3) | 3.9725 (3) | 3.9819 (3) | ° | | | |
| | 0.03 | R-O-T | 20.8 (R3m; H) | 5.6285 (5) | 5.6285 (5) | 6.9084 (12) | °, ° | 4.44 | 6.27 | 4.30 | | 62.0 (Amm2) | 3.9620 (3) | 5.6393 (4) | 5.6425 (4) | ° | | | | | 17.2 (P4mm) | 3.9699 (4) | 3.9699 (4) | 3.9793 (4) | ° | | | |
| | 0.05 | R-O-T | 30.5 (R3m; H) | 5.6250 (3) | 5.6250 (3) | 6.8997 (7) | °, ° | 4.30 | 5.90 | 3.76 | | 45.1 (Amm2) | 3.9649 (3) | 5.6384 (4) | 5.6416 (4) | ° | | | | | 24.4 (P4mm) | 3.9717 (3) | 3.9717 (3) | 3.9812 (3) | ° | | | |
| | 0.06 | R-O-T | 33.2 (R3m; H) | 5.6254 (2) | 5.6254 (2) | 6.9005 (5) | °, ° | 4.21 | 5.67 | 3.78 | | 34.1 (Amm2) | 3.9695 (3) | 5.6395 (3) | 5.6427 (3) | ° | | | | | 32.7 (P4mm) | 3.9747 (2) | 3.9747 (2) | 3.9841 (2) | ° | | | |
| | 0.08 | R-O-T | 38.9 (R3m; H) | 5.62450 (1) | 5.6250 (1) | 6.8996 (3) | °, ° | 4.29 | 5.87 | 4.23 | | 15.9 (Amm2) | 3.9690 (3) | 5.6374 (3) | 5.6405 (3) | | | | | | 45.2 (P4mm) | 3.9756 (1) | 3.9756 (1) | 3.9850 (1) | ° | | | |
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