Fig. 5: Investigation of exciton recombination region. | Nature Communications

Fig. 5: Investigation of exciton recombination region.

From: Harmonization of rapid triplet up-conversion and singlet radiation enables efficient and stable white OLEDs

Fig. 5

a Energy-level diagrams (in eV) of devices employed for detecting exciton recombination zone. b Relative intensity profiles of TBRb and 5TCzBN as a function of position and voltage. c Energy-level diagrams (in eV) of devices C-1 ~ 4, with varying thicknesses of the B-EML (25, 20, 10 and 5 nm, respectively). d Normalized electroluminescent spectra of devices C-1 ~ 4 measured at 1000 cd m-2 (Insets depict CIE coordinates). Source data are provided as a Source Data file.

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