Abstract
Frequency performances and sensitivities for three types of organic
photo-detector (OPD) were studied for an opto-electrical conversion device.
A high efficiency of 19.4% of the external conversion efficiency and a high
cutoff frequency response of 16 MHz were achieved using a mixed-layer between
copper phthalocyanine (CuPc) and N, N'-bis (2,5-di-tert- butylphenyl) 3,4,9,10-perylene dicarboximide
(BPPC) at a reverse bias voltage of 8 V under red incident light. These results
were achieved by increasing exciton dissociation and charge carrier generation
and to reduce the number of trapped carriers at the interfaces between CuPc
and BPPC. The transmission of a moving picture was successfully demonstrated
using mixed-layer OPD as an opto-electrical conversion device. These results
indicate that it is possible for an OPD to be used as an opto-electrical conversion
device in high-speed optical transmission systems.
© 2006 IEEE
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