Image capture array with an organic light sensor

Street, R. A.; Mulato, M.; Lau, R.; Ho, J.; Graham, J.; Popovic, Z.; Hor, J.
June 2001
Applied Physics Letters;6/25/2001, Vol. 78 Issue 26, p4193
Academic Journal
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 ∼90%. X-ray imaging with a phosphor converter is demonstrated. © 2001 American Institute of Physics.


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