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Advanced Materials

Light- and Touch-Point Localization using Flexible Large Area Organic Photodiodes and Elastomer Waveguides



A homogeneous large area photodiode with high resistance electrodes can be used to trace the position of a localized light signal, thus allowing the easy fabrication of large area light- and touch-point sensors. A readout scheme is presented that allows a direct and simple recalculation of the coordinates from four current signals picked up at the edges of the device.

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