“…Organic thin-fi lm devices are expected to yield simultaneously large-area, lowcost, lightweight, and fl exible devices because they can easily be fabricated on polymer fi lms by printing processes such as inkjet printing. [44][45][46][47][48] In this article, we review recent progress on large-area, ultrafl exible, and stretchable organic electronics and related technologies. In particular, ultrafl exible organic thin-fi lm devices such as organic thin-fi lm transistors (OTFTs), [49][50][51][52][53] organic photovoltaic (OPV) cells, 54 and organic light-emitting diodes (OLEDs) 55,56 are described.…”