UV-vis analysis of PT films deposited on plain and PTS substrates.
| Pressure (mT) | λ max (nm) | Optical band gap (eV) | ||
|---|---|---|---|---|
| Plain | PTS | Plain | PTS | |
| 100 | 511 | 504 | 1.92 | 1.92 |
| 150 | 527 | 521 | 1.94 | 1.92 |
| 200 | 513 | 506 | 1.93 | 1.92 |
| 300 | 521 | 519 | 1.90 | 1.90 |
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