All‐organic optocouplers based on polymer light‐emitting diodes and photodetectors | Zendy

Stathopoulos N. A. | Zendy; Palilis L. C. | Zendy; Vasilopoulou M. | Zendy; Botsialas A. | Zendy; Falaras P. | Zendy; Argitis P. | Zendy

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All‐organic optocouplers based on polymer light‐emitting diodes and photodetectors

Author(s) -

Stathopoulos N. A.,

Palilis L. C.,

Vasilopoulou M.,

Botsialas A.,

Falaras P.,

Argitis P.

Publication year - 2008

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200780213

Subject(s) - polyfluorene , materials science , electroluminescence , optoelectronics , substrate (aquarium) , diode , layer (electronics) , polymer , active layer , oled , photodetector , thin film transistor , nanotechnology , composite material , oceanography , geology

In this work, we demonstrate all organic flexible polymeric optocouplers by utilizing a donor‐acceptor bulk heterojunction polymer photodetector (PD) as the output unit and a polymer light‐emitting diode (PLED) as the input unit. The input unit is a single‐layer PLED on a glass or a plastic (PET) substrate utilizing a green emitting polyfluorene‐benzothiadiazole copolymer in the active layer. The output unit is a single‐layer PD on a glass substrate utilizing a P3HT:PCBM(1:1 by weight) blend, where P3HT is regioregular poly(3‐hexylthiophene) and PCBM is (6,6)‐phenyl‐C 61 ‐butyric acid methyl ester. The electroluminescence spectrum of the PLED peaks at 530 nm and covers a spectral range that coincides quite well with the PD absorption spectrum (between 450 and 650 nm). The current density transfer ratio reaches 0.012% for an optocoupler that operates at 0 V and 15 V for the PD and PLED, respectively. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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