Organic thin-film transistors for organic light-emitting flat-panel display backplanes

The performance of organic thin-film transistors (OTFTs) has improved significantly in the last several years and it now appears likely that they will find application in low-cost large-area electronic applications. Active-matrix displays are of special interest and integration of OTFTs with organic...

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Veröffentlicht in:IEEE journal of selected topics in quantum electronics 1998-01, Vol.4 (1), p.100-104
Hauptverfasser: Jackson, T.N., Yen-Yi Lin, Gundlach, D.J., Klauk, H.
Format: Artikel
Sprache:eng
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Zusammenfassung:The performance of organic thin-film transistors (OTFTs) has improved significantly in the last several years and it now appears likely that they will find application in low-cost large-area electronic applications. Active-matrix displays are of special interest and integration of OTFTs with organic light-emitting devices (OLEDs) in all-organic displays is particularly attractive. The device requirements for active-matrix OLED displays are very similar to those of active-matrix liquid crystal displays (AMLCDs) and can be satisfied with OTFTs fabricated using stacked pentacene active layers. Such devices have demonstrated field-effect mobility near 1.5 cm/sup 2//V/spl middot/s, on/off current ratio near 10/sup 8/, near-zero threshold voltage, and subthreshold slope less than 1.6 V/decade. These characteristics are similar to those obtained with hydrogenated amorphous silicon (a-Si:H) devices and such devices would allow the use of polymeric substrates with advantages in weight, ruggedness, and cost compared to glass substrates currently used with a-Si:H devices in AMLCDs.
ISSN:1077-260X
1558-4542
DOI:10.1109/2944.669475