The performance of organic field-effect transistors (OFETs) has improved substantially in recent years. Their field-effect mobilities are now comparable to that of hydrogenated amorphous silicon thin-film transistors (TFTs). Both TFTs and OFETs operate in the accumulation regime and the authors here develop a comprehensive model for OFETs in this regime. They show that, in the case of a constant mobility, a threshold voltage cannot be defined. The threshold voltage observed in practice is attributed to a gate-voltage-dependent mobility.
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Slovak Univ Technol Bratislava, Inst Elect & Photon, Bratislava 81219, SlovakiaSlovak Univ Technol Bratislava, Inst Elect & Photon, Bratislava 81219, Slovakia
Weis, Martin
Lee, Keanchuan
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Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, JapanSlovak Univ Technol Bratislava, Inst Elect & Photon, Bratislava 81219, Slovakia
Lee, Keanchuan
Taguchi, Dai
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Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, JapanSlovak Univ Technol Bratislava, Inst Elect & Photon, Bratislava 81219, Slovakia
Taguchi, Dai
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Manaka, Takaaki
Iwamoto, Mitsumasa
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机构:
Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, JapanSlovak Univ Technol Bratislava, Inst Elect & Photon, Bratislava 81219, Slovakia