Fig. 4: Skin-attachable NIR wireless communication. | Nature Communications

Fig. 4: Skin-attachable NIR wireless communication.

From: Skin-conformal MHz-speed organic photodetectors for angle-free and long-range near-infrared communication

Fig. 4

a Schematic illustration and b photograph of a skin-conformal NIR wireless receiver attached to human skin. c Schematic of data transmission under varying LED incidence angles for devices placed on glass and skin. d Eye diagram and e output photocurrent amplitude (top), bit-error-rate (BER, bottom) as a function of LED angle. f Schematic image (left) and real photograph image under room light (right, top) and dark (right, bottom) condition for the demonstration of long-distance NIR wireless communication using an 850-nm laser diode, with the device attached to skin surface. g Photocurrent amplitude and h corresponding Fast Fourier transform amplitude versus distance under bright (red) and dark (blue) conditions.

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