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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Marques, António
Universidade do Porto
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2008Effect of annealing on molybdenum doped indium oxide thin films RF sputtered at room temperaturecitations
- 2006Multifunctional Thin Film Zinc Oxide Semiconductors: Application to Electronic Devicescitations
- 2005A Study on the Electrical Properties of ZnO Based Transparent TFTscitations
- 2002 Equipment to produce continuously powder coated thermoplastic matrix prepregs (towpregs)
- 2001Thin film metal oxide semiconductors deposited on polymeric substrates
- 2001Thin film metal oxide semiconductors deposited on polymeric substrates
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article
A Study on the Electrical Properties of ZnO Based Transparent TFTs
Abstract
The purpose of this work is to present in-depth electrical characterization on transparent TFTs, using zinc oxide produced at room temperature as the semiconductor material. Some of the studied aspects were the relation between the output conductance in the post-pinch-off regime and width-to-length ratios, the gate leakage current, the semiconductor/insulator interface traps density and its relation with threshold voltage. The main point of the analysis was focused on channel mobility. Values extracted using different methodologies, like effective, saturation and average mobility, are presented and discussed regarding their significance and validity. The evolution of the different types of mobility with the applied gate voltage was investigated and the obtained results are somehow in disagreement with the typical behavior found on classical silicon based MOSFETs, which is mainly attributed to the completely different structures of the semiconductor materials used in the two situations: while in MOSFETS we have monocrystalline silicon, our transparent TFTs use poly/nanocrystalline zinc oxide with grain sizes of about 10 nm.