Fig. 5: Low-dimensional flexible PeLEDs.
From: Flexible perovskite light-emitting diodes: recent progress, applications and challenges
a Device structure (i) and EQE vs current density (ii) of 2D PEA2SnI4 inkjet-printed LEDs. Under the terms of Creative Commons Attribution International License (CC-BY 4.0). b Schematic mechanism of the perovskite morphology control with the PEG (i), and CE and EQE as a function of luminance (ii). Reproduced with permission from ref. 85. Copyright 2019, John Wiley and Sons. c Fluorescent photographs of four-inch wafer-scale MAPbBr3 QWs on Corning Willow glass (i), and EL image of a 3D spherical device under 10 V bias (ii). Reproduced with permission from ref. 95. Copyright 2022, Springer Nature. d Bendability (i) and stretchability (ii) characterizations, and (iii) Victoria Harbor built by mounting batches of fibers. The unlabeled scale bar is 1 cm. Under the terms of Creative Commons Attribution International License (CC-BY 4.0). e PL intensity retention of the EVA-160 film after repeatedly bending for 0–1000 cycles (i), and tensile curves of the pure EVA film and EVA-160 film (ii). Reproduced with permission from ref. 104. Copyright 2018, American Chemical Society.
