Table 3.
Summary of electrical parameters for MIM device and pentacene OTFTs with different hybrid dielectrics
| Dielectric materials | Capacitance (nF cm−2) | Dielectric constant (−) | μ (cm2 V−1 s−1) | V t (V) | I on/I off (−) |
|---|---|---|---|---|---|
| IB0 | 9.2 | 4.5 | 1.03 × 10−1 | 5.8 | 3.0 × 105 |
| IB2 | 10.3 | 5.0 | 1.86 × 10−1 | −4.2 | 7.5 × 105 |
| IB5 | 11.2 | 5.5 | 2.38 × 10−1 | 5.3 | 1.2 × 106 |
| IB8 | 12.4 | 6.1 | 2.53 × 10−1 | 2.6 | 5.2 × 106 |
| IB10 | 16.0 | 7.8 | 2.76 × 10−1 | −3.1 | 8.2 × 106 |
| IB12 | 17.5 | 8.6 | 2.57 × 10−1 | −8.2 | 6.1 × 106 |
| IB0/PMMA | 8.4 | 4.1 | 1.88 × 10−1 | −1.8 | 7.1 × 105 |
| IB2/PMMA | 9.2 | 4.5 | 2.72 × 10−1 | 0.3 | 1.3 × 106 |
| IB5/PMMA | 10.1 | 4.9 | 2.97 × 10−1 | 4.2 | 2.7 × 106 |
| IB8/PMMA | 12.0 | 5.9 | 3.64 × 10−1 | 4.3 | 9.4 × 106 |
| IB10/PMMA | 12.6 | 6.2 | 4.17 × 10−1 | 2.7 | 2.2 × 107 |
| IB12/PMMA | 14.7 | 7.2 | 3.81 × 10−1 | 2.9 | 1.5 × 107 |
| IB0/COC | 7.9 | 4.0 | 2.01 × 10−1 | −5.1 | 8.3 × 105 |
| IB2/COC | 9.2 | 4.3 | 2.80 × 10−1 | 0.8 | 3.1 × 106 |
| IB5/COC | 9.4 | 4.6 | 3.12 × 10−1 | −1.6 | 5.1 × 106 |
| IB8/COC | 11.1 | 5.6 | 3.81 × 10−1 | −3.7 | 1.8 × 107 |
| IB10/COC | 11.7 | 5.9 | 4.32 × 10−1 | 0.1 | 8.4 × 107 |
| IB12/COC | 13.3 | 6.5 | 3.96 × 10−1 | −2.6 | 2.0 × 107 |