Fig. 2: Design and characterization of is-ETLs for highly stretchable is-functional layers. | npj Flexible Electronics

Fig. 2: Design and characterization of is-ETLs for highly stretchable is-functional layers.

From: Intrinsically stretchable OLEDs with a designed morphology-sustainable layer and stretchable metal cathode

Fig. 2

a UV‒vis absorption spectra of is-EMLs with various TX blending ratios, and solvent coating effect on the is-EMLs. b UV-vis absorption spectra of is-EMLs before and after TX-blended solvent coating (TX1 = 1 mg ml–1, TX2 = 2 mg ml–2, TX4 = 4 mg ml–1). c Photoluminescence spectra of is-EMLs before and after TX-blended solvent coating. d COS of is-EMLs before and after TX-blended solvent coating. e COS of is-ETLs with various component ratios when coated on PDMS or is-EMLs. f UPS intensity of is-ETL and Ag films with various TX ratios. g Current density of electron-only devices with various ETL component ratios. h Energy-level alignment diagram for the conventional OLED device with an is-ETL. i V-L curve, (j) J-V curve, and (k) εc-L curve of the conventional OLED device with an is-ETL on a glass substrate.

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