Figure 3. Cavity-induced dependence of the resonance wavelength on the angle of light incidence.

Angularly and spectrally resolved behaviour of a ZnPc:C₆₀ sample resonating at 950 nm when the angle of incidence is 0° (device marked as ♦ in Fig. 2a). (a) Experimental device absorption. (b) Experimental EQE. (c) Simulated device absorption. All graphs are normalized. For wavelengths below 800 nm, the neat absorber sequence extinguishes light outside the microcavity (see a,c) and, therefore, efficiently reduces the photo-response in the visible spectrum (compare b).