Table 1 Properties comparison of some organic materials for field emission
Materials | Vacuum gap (μm) (thickness) | Turn-on field (V/μm) | Work function (eV) | Ref. |
---|---|---|---|---|
Ag-TCNQ | 600 (50 nm Ag) | 13.5 | 1.77 | Our work |
Ag-TCNQ | 600 (30 nm Ag) | 9.3 | 1.71 or 1.48 | Our work |
Ag-TCNQ | (foil) | 2.58 | 1.19 | Ref. [6] |
Cu-TCNQ | (foil) | 3.13 | 2.77 | Ref. [6] |
F16CuPc | 9.3,9.8,12.7 | 5.1 | Ref. [3] | |
CuPc | 8.7(alfa) 8.1(beta) 9.7(alfa + beta) | 4.62 | Ref. [3] | |
F4TCNQ-Ag | 300 (foil) | 5.21 | 1.07 | Ref. [4] |
F4TCNQ-Cu | 300 (foil) | 5.48 | 2.39 | Ref. [4] |
AlQ3 | 10 | 3 | Ref. [2] |