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Ana Santa
Researcher at Universidade Nova de Lisboa
Publications - 12
Citations - 264
Ana Santa is an academic researcher from Universidade Nova de Lisboa. The author has contributed to research in topics: Transistor & Ring oscillator. The author has an hindex of 7, co-authored 12 publications receiving 185 citations.
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Journal ArticleDOI
A Sustainable Approach to Flexible Electronics with Zinc‐Tin Oxide Thin‐Film Transistors
Cristina Fernandes,Ana Santa,Ângelo Santos,Pydi Ganga Bahubalindruni,Jonas Deuermeier,Rodrigo Martins,Elvira Fortunato,Pedro Barquinha +7 more
TL;DR: In this paper, the performance of flexible zinc-tin oxide (ZTO) thin-film transistors (TFTs) processed at only 180 °C is reported. But no critical elements as In and Ga are used, device performance approaches the one of indium-gallium-zinc oxide TFTs.
Journal ArticleDOI
Towards environmental friendly solution- based ZTO/AlO x TFTs
Rita Branquinho,Daniela Salgueiro,Ana Santa,Asal Kiazadeh,Pedro Barquinha,Luís Pereira,Rodrigo Martins,Elvira Fortunato +7 more
TL;DR: In this article, a new environmental friendly solution combustion synthesis route, using ethanol as solvent, for the preparation of indium/gallium free amorphous zinc-tin oxide (ZTO) thin film transistors (TFTs) including AlOx gate dielectric was reported.
Journal ArticleDOI
High-Gain Transimpedance Amplifier for Flexible Radiation Dosimetry Using InGaZnO TFTs
Pydi Ganga Bahubalindruni,Jorge Martins,Ana Santa,Vitor Grade Tavares,Rodrigo Martins,Elvira Fortunato,Pedro Barquinha +6 more
TL;DR: In this article, a high-gain transimpedance amplifier for flexible radiation sensing systems that can be used as large-area dosimeters is presented, using indium-gallium-zinc-oxide thin-film transistors.
Journal ArticleDOI
Passive radiofrequency x-ray dosimeter tag based on flexible radiation-sensitive oxide field-effect transistor
Tobias Cramer,Ilaria Fratelli,Pedro Barquinha,Ana Santa,Cristina Fernandes,Franck D’Annunzio,Christophe Loussert,Rodrigo Martins,Elvira Fortunato,Beatrice Fraboni +9 more
TL;DR: A passive, programmable, wireless sensor that reports in real time the excess of critical radiation doses based on flexible oxide thin-film transistors that show a quantitative shift in threshold voltage upon exposure to ionizing radiation is presented.
Journal ArticleDOI
Oxide TFT Rectifiers on Flexible Substrates Operating at NFC Frequency Range
Bhawna Tiwari,Pydi Ganga Bahubalindruni,Ana Santa,Jorge Martins,Priyanka Mittal,João Goes,Rodrigo Martins,Elvira Fortunato,Pedro Barquinha +8 more
TL;DR: In this article, the experimental characterization of different rectifier circuits using indium-gallium-zincoxide thin-film transistor technologies either at NFC or a high frequency range (13.56 MHz) of RFID was presented.