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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Appl. Phys. Lett. (1)

C. W. Tang, S. A. VanSlyke, "Organic electroluminescent diodes," Appl. Phys. Lett. 51, 913-915 (1987).

Appl. Phys. Lett. (2)

S. Uchida, J. Xue, B. P. Rand, S. R. Forrest, "Organic small molecule solar cells with a homogeneously mixed copper phthalocyanine: C60 active layer," Appl. Phys. Lett. 84, 4218-4220 (2004).

P. Peumans, V. Bulovic, S. R. Forrest, "Efficient, high-bandwidth organic multiplayer photodetectors," Appl. Phys. Lett. 76, 3855-3857 (2000).

IEEE J. Sel. Top. Quantum Electron. (1)

Y. Ohmori, H. Kajii, M. Kaneko, K. Yoshino, M. Ozaki, A. Fujii, M. Hikita, H. Takenaka, T. Taneda, "Realization of polymeric optical integrated devices utilizing organic light-emitting diodes and photodetectors fabricated on a polymeric waveguide," IEEE J. Sel. Top. Quantum Electron. 10, 70-78 (2004).

J. Appl. Phys. (1)

J. Xue, S. R. Forrest, "Carrier transport in multiplayer organic photodetectors: I. Effects of layer structure on dark current and photoresponse," J. Appl. Phys. 95, 1859-1868 (2004).

J. Appl. Phys. (2)

T. Stubinger, W. Brutting, "Exciton diffusion and optical interference in organic donor-acceptor photovoltaic cells," J. Appl. Phys. 90, 3632-3641 (2001).

P. E. Burrows, Z. Shen, V. Bulovic, D. M. McCarty, S. R. Forrest, J. A. Cronin, M. E. Thompson, "Relationship between electroluminescence and current transport in organic heterojunction light-emitting devices," J. Appl. Phys. 79, 7991-8006 (1996).

J. Phys. D: Appl. Phys. (1)

H. Kajii, T. Tsukagawa, T. Taneda, Y. Ohmori, "Blue organic light-emitting diode as the electro-optical conversion device for high-speed switching applications," J. Phys. D: Appl. Phys. 35, 1334-1337 (2002).

Jpn. J. Appl. Phys. (1)

K. Kudo, M. Yamashina, T. Moriizumi, "Field effect measurement of organic dye films," Jpn. J. Appl. Phys. 23, 130 (1984).

Jpn. J. Appl. Phys. (1)

M. Kaneko, T. Taneda, T. Tsukagawa, H. Kajii, Y. Ohmori, "Fast response of organic photodetectors utilizing multilayered metal-phthalocyanine thin films," Jpn. J. Appl. Phys. 42, 2523-2525 (2003).

Jpn. Joul. Appl. Phys. (1)

T. Morimune, H. Kajii, Y. Ohmori, "Semitransparent organic photodetectors utilizing sputter-deposited indium tin oxide for contact electrode," Jpn. Joul. Appl. Phys. 44, 2815-2817 (2005).

Nature (1)

J. H. Burroughes, D. D. C. Bradley, A. R. Brown, R. M. Marks, K. Mackay, R. H. Friend, P. L. Burns, A. B. Holmes, "Light-emitting diode based on conjugated polymer," Nature 347, 539-541 (1990).

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