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MIT Electrical Engineering and Computer Science
EECS Event |
Tuesday, September 11, 2001
4:00 PM (refreshments 3:30)
Edgerton Hall, Room 34-101
MTL VLSI Seminar
Abstract
Organic thin film transistor (OTFT) performance has improved rapidly over the last several years and it appears likely that OTFTs will find application in a variety of low-cost, large-area electronic applications. OTFT device performance now rivals or exceeds that of amorphous silicon devices, and low OTFT process temperatures allow fabrication on a range of surfaces including cloth or flexible polymeric substrates. We have fabricated pentacene-based organic thin film transistors (OTFTs) on flexible low-temperature (PEN) polymeric substrates with performance comparable to a-Si:H devices (field-effect mobility > 1 cm2/V-s, current on/off ratio > 108, and near zero threshold voltage). Using these devices we have fabricated digital and analog circuits and active matrix display pixel arrays. We have also combined organic and inorganic thin film transistors to fabricate simple low-power complementary circuits. These results demonstrate OTFT utility for a variety of low-cost, large-area electronics applications.