fig4
From: A highly stretchable and sintering-free liquid metal composite conductor enabled by ferrofluid
Figure 4. (A) Schematic of the preparation of the flexible LED circuit with magnetic LME composite as the switch; (B) Microscopic images of the LME circuits replicated with different linewidths (100, 200, 300, 400, and 500 μm). Scale bar: 100 μm; (C) Optical image and microscope image of the SZU logo. Scale bar: 3 mm; (D) Photographs of the prepared NFC antenna. Scale bar: 3 mm; (E) Schematic diagram showing the magnetic connection of the LME composite in the LED circuit; (F) Lighted LEDs in different connected ways. LME: LM-elastomer.