Flexible organic complementary circuits

We report the first organic complementary circuits on flexible substrates. Organic thin-film transistors were fabricated using pentacene as the semiconductor for the p-channel devices and hexadecafluorocopperphthalocyanine (F/sub 16/CuPc) as the semiconductor for the n-channel devices. Both semicond...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2005-04, Vol.52 (4), p.618-622
Main Authors: Klauk, H., Halik, M., Zschieschang, U., Eder, F., Rohde, D., Schmid, G., Dehm, C.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit optimization
Circuit properties
Circuits
Design. Technologies. Operation analysis. Testing
Devices
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Evaporation
Exact sciences and technology
Integrated circuit layout
Integrated circuit manufacture
Integrated circuits
Microelectronic fabrication (materials and surfaces technology)
Organic integrated circuits
organic thin-film transistors (TFTs)
Oscillators, resonators, synthetizers
Pentacene
Photolithography
Plastic films
polymer gate dielectrics
Semiconductor device manufacture
Semiconductor devices
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Semiconductors
Thin film transistors
Transistors
Voltage
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Summary:We report the first organic complementary circuits on flexible substrates. Organic thin-film transistors were fabricated using pentacene as the semiconductor for the p-channel devices and hexadecafluorocopperphthalocyanine (F/sub 16/CuPc) as the semiconductor for the n-channel devices. Both semiconductors were purchased from commercial sources and deposited by evaporation in vacuum. The pentacene layer was photolithographically patterned to simplify the circuit layout and reduce the circuit area. The transistors and circuits were manufactured on thin, transparent sheets of polyethylene naphthalate. Evaporated metals were used to define all contacts and interconnects, and a 50-nm-thick layer of solution-processed polyvinylphenol was used as the gate dielectric. Transistors and circuits operate at supply voltages as low as 8 V, and ring oscillators have a signal propagation delay as low as 8 /spl mu/s per stage. To our knowledge, these are the fastest organic complementary circuits reported to date.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2005.844739