An optical sensor array on a flexible substrate with integrated organic opto-electric devices

AbstractA new optical integrated sensor array for multi-analyte sensing applications is presented. The sensor platform consists of monolithically integrated luminescent sensor spots together with ring-shaped organic photo-detector on one substrate and an assembled organic light emitting diode. The sensing layer is screen printed onto the flexible polymeric (PET) substrate. All production steps can be adapted to mass production. Due to the sensing geometry the array does not require to integrate filters to discriminate between excitation light and emitted luminescence of the sensing alayer. The sensor platform is suitable for the parallel detection of multiple parameters. Sensing schemes for the analytical parameters oxygen, carbon dioxide, temperature and ammonia are presented. The response of the sensor device when applied to different atmospheres showed good performance emphasizing the universal and simple use of the sensor platform