In this letter, we report a flexible complementary common-source (CS) amplifier comprising one p-type spray-coated singlewalled carbon nanotube and one n-type sputtered InGaZnO4 thin-film transistor (TFT). Bottom-gate TFTs were realized on a free-standing flexible polyimide foil using amaximumprocess temperature of 150 degrees C. The resulting CS amplifier operates at 10 V supply voltage and exhibits a gain bandwidth product of 60 kHz. Thanks to the use of a p-type TFT acting as a tunable current source load, the amplifier gain can be programmed from3.5 up to 27.2V/V (28.7 dB). To the best of our knowledge, this is the highest gain ever obtained for a flexible single-stage CS amplifier.
Gain-Tunable Complementary Common-Source Amplifier Based on a Flexible Hybrid Thin-Film Transistor Technology / Petti, L., Loghin, F., Cantarella, G., Vogt, C., Münzenrieder, N., Abdellah, A., Becherer, M., Haeberle, T., Daus, A., Salvatore, G., Troster, G., Lugli, P.. - In: IEEE ELECTRON DEVICE LETTERS. - ISSN 0741-3106. - 38:11(2017), pp. 1536-1539. [10.1109/LED.2017.2748596]
Gain-Tunable Complementary Common-Source Amplifier Based on a Flexible Hybrid Thin-Film Transistor Technology
Cantarella G;
2017
Abstract
In this letter, we report a flexible complementary common-source (CS) amplifier comprising one p-type spray-coated singlewalled carbon nanotube and one n-type sputtered InGaZnO4 thin-film transistor (TFT). Bottom-gate TFTs were realized on a free-standing flexible polyimide foil using amaximumprocess temperature of 150 degrees C. The resulting CS amplifier operates at 10 V supply voltage and exhibits a gain bandwidth product of 60 kHz. Thanks to the use of a p-type TFT acting as a tunable current source load, the amplifier gain can be programmed from3.5 up to 27.2V/V (28.7 dB). To the best of our knowledge, this is the highest gain ever obtained for a flexible single-stage CS amplifier.
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