Fig. 1 | Nature Communications

Fig. 1

From: Investigating underlying mechanism in spectral narrowing phenomenon induced by microcavity in organic light emitting diodes

Fig. 1

Optical characterizations of cavity-based organic OLEDs. a Cavity-based F8BT OLEDs with the structure of Bottom DBR/ITO/PEDOT:PSS/F8BT/TPBi/LiF/Al/Top DBR. b Energy diagram for F8BT OLEDs. c Absorption and PL spectra for F8BT thin film. d Reflective spectra at normal incidence angle to bottom DBR used in high-Q, intermediate-Q and low-Q cavity-based OLEDs

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