Table 1.
Properties of investigated devices and materials; |Vmax| is the absolute maximum applied gate- or source-drain-voltage in the corresponding transfer characteristic. d1 is the thickness of the first dielectric layer and d2 is the thickness of the second dielectric layer in the case of bilayer structures (the same is valid for the dielectric constants ɛ1 + ɛ2). Ad stands for adenine. Dielectric constants for AlOx and adenine are taken from [22], for BCB from [31] and for parylene from [21].
| BCB | Parylene | AlOx-BCB | AlOx-Ad | AlOx-PE | |
|---|---|---|---|---|---|
| |Vmax| (V) | 60 | 4.5 | 0.4 | 0.8 | 0.75 |
| μ (cm2 V−1 s−1) | 5.1 | 4.6 × 10−2 | 3.5 | 3.2 | 2.9 |
| VT (V) | 13.2 | −3.5 | −3 × 10−3 | −0.25 | 0.39 |
| on/off | >106 | ∼102.5 | ∼102.5 | ∼103 | >103 |
| C0 (nF cm−2) | 1.2 | 11.8 | 92.7 | 106 | 133 |
| ɛ1[/ɛ2] | 2.65 | 3 | 9/2.65 | 9/3.85 | 9/2.3 |
| d1[/d2] (nm) | 2000 | 225 | 52/10 | 52/10 | 52/2 |
| W (mm) | 3 | 2 | 3 | 2 | 2 |
| L (μm) | 35 | 80 | 50 | 80 | 80 |