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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Enhanced Performance of Quantum Dot-Based Light-Emitting Diodes with Gold Nanoparticle-Doped Hole Injection Layer

Fig. 2

a Schematic illustration of all-solution-processed QLEDs with a multilayered structure, consisting of ITO/HIL/HTL/CdZnSe/ZnS core-shell QDs/ZnO NPs/Al. b Energy levels of multilayered structure. The values of energy level are cited from refs. [55–59]. c Normalized PL (green line) of QD solution and EL spectra of QLEDs for different hole injection materials (with and without Au NP-doped PEDOT:PSS). d PL decay curves of diluted toluene solution of ZnCdSe/ZnS core-shell QDs (black line) versus films of ITO/PEDOT:PSS/poly-TPD/QDs film (red line) and ITO/Au NP-doped PEDOT:PSS/poly-TPD/QDs film (blue line)

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