Table 2.
Performance of perovskite LEDs (100% PEABr case) with different PEDOT:PSS thicknesses
| PEDOT:PSS Thickness | VT (V) | EL peak (nm) | Max. L. (cd m−2) | Max. CE (cd A−1) | Max. EQE (%) | FWHM (nm) | CIE |
|---|---|---|---|---|---|---|---|
| 15 nm | 3.4 | 481 | 1380 | 2.3 | 2.2 | 21 | (0.106,0.194) |
| 30 nm | 3.2 | 480 | 3780 | 6.1 | 5.7 | 21 | (0.102,0.178) |
| 45 nm | 3.1 | 480 | 965 | 3.9 | 3.6 | 21 | (0.101,0.155) |
| 60 nm | 3.6 | 480 | 178 | 2.6 | 2.6 | 22 | (0.101,0.148) |
LED light-emitting diode, PEDOT:PSS Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate), CE current efficiency, EQE external quantum efficiency, PEABr phenylethylammonium bromide