Fully Digitally Printed Image Sensor Based on Organic Photodiodes

Here, an entirely printed passive matrix image detector composed of 256 individual pixels with an individual active area of approximate to 250 mu m x 300 mu m is fabricated. The fabrication of the organic photodetector (OPD) array is enabled by exploiting a self-alignment process of the functional layers induced by digitally printed dewetting patterns resulting in high-performance reproducibility and fabrication yields of 100%. The single OPD pixels fabricated under ambient conditions exhibit state-of-the art performances with spectral responsivities of up to 0.3 A W-1, a linear dynamic range of 114 dB, and calculated specific detectivities (D*) > 10(12) Jones, thereby, competing with performances of current inorganic devices.