Fig. 4: Device performance of is-OLEDs and deformable displays. | npj Flexible Electronics

Fig. 4: Device performance of is-OLEDs and deformable displays.

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

Fig. 4

a Schematics of the is-OLED structure and thickness. b Energy-level alignment diagram of the is-OLED. c J-V-L curve of the is-OLEDs. d Relative L change (L ∙ L0−1) of the is-OLEDs during static stretching tests when operated at 8 V. Error bars indicate mean ± standard deviation. e L ∙ L0−1 changes of the is-OLEDs during 40% strain cyclic stretching tests. f Radar plot comparing the electroluminescence (EL) performance, stretchability, and fabrication complexity of is-OLEDs produced using the sequential coating or lamination method. The fabrication complexity corresponds to the number of transfer and lamination processes during the is-OLED fabrication process. g Optical images of the is-OLEDs with an original emission area of 3.0 × 3.0 mm2 operated under various strains. h Optical photographs of 3×2 is-OLED array devices operated under various strains and deformations.

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