The photodiodes based on thin film organic electronic device

In this study, we propose the detection of the black shutter using thin film organic photodiodes. The device structure include hole transporting layer, polyethylenedioxythiophene: Poly-styrenesulphonate (PEDOT:PSS), active layer, poly(3-hexylthiophene): [6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM), indium tin oxide anode (ITO), and Al or LiF/Al cathode. The optimal opto-electronics effect of device structure was it had 150 °C heating process, active layer had 105 nm thicknesses and had LiF/Al cathode. The output voltage test used 1000W simulator and 20W fluorescent light, we got the 0.5V and 0.25V difference, respectively. Output voltage difference is 10 times more than the dye-sensitized photovoltaic cell [1]. Obviously, thin film organic photodiodes can be expected applications in the wearable eye-gaze tracking systems. It is expectation to measure the signs of thin film organic photodiodes array and make the relative devices or systems in future.