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发帖数: 18 | 1 (4) Photons released out of OLEDs.
The coupling of electronic excitations to photon states is affected by the
physical structure of OLEDs. The presence of the metallic cathode provides a
mirror that modifies the pattern of the electromagnetic modes near the
cathode. The variation of Alq film thickness in a two-layer structure will
change the distance between emissive zone and the cathode, therefore emission
spectra, as shown in Figure 1-5, and spectral emission pattern will
accordingly change. |
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