Image capture array with an organic light sensor

A large-area image capture device using an organic sensor is reported. The 512x512 pixel array, with 100x100 micrometer pixel size, combines amorphous silicon matrix addressing with a continuous organic sensor. The bilayer sensor comprises a tetraphenyldiamine hole transport layer on top of a benzimidazole perylene generator layer. This combination provides high sensitivity across the visible with low dark current. We present imaging properties and in particular show that the lateral charge transport between pixels is small, and that the effective fill factor is similar to 90%. X-ray imaging with a phosphor converter is demonstrated. (C) 2001 American Institute of Physics.