期刊
JOURNAL OF DISPLAY TECHNOLOGY
卷 10, 期 11, 页码 971-974出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JDT.2014.2344040
关键词
Organic thin-film transistor (OTFT); solution processed; low temperature; low voltage; high voltage
资金
- National Science Foundation of China (NSFC) [61274083]
- The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- Program for New Century Excellent Talents (NCET) in University
- Shanghai Pujiang Program [11PJ1404700]
Solution processed bottom-gate bottom-contact organic thin-film transistors (OTFTs) being able to sustain hybrid low/high voltage operation were realized with the maximum processing temperature not exceeding 100 degrees C. In the devices, a channel engineering approach is used to achieve low voltage operation, by inducing phase separation with the blend of 6, 13-bis(triisopropylsilylethynyl)-pentacene and polystyrene to form an ultra-thin high crystalline channel. Since the approach doesn't rely on enlarging the gate dielectric capacitance, the low voltage OTFT with a relatively thick dielectric layer was shown to be able to sustain high voltage operation. Moreover, the ultra-small dielectric capacitance can help to reduce the parasitic capacitance in the data and scan lines of the display panel. The device technology is shown to be promising for developing flexible/rollable display systems on plastic substrates, where a relatively high voltage is required for the pixel driving circuits, and a low voltage is preferred for the logic circuits in the peripheral drivers.
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