Garlapati, Suresh Kumar and Marques, Gabriel Cadilha and Gebauer, Julia Susanne and Dehm, Simone and Bruns, Michael and Winterer, Markus and Tahoori, Mehdi Baradaran and Aghassi-Hagmann, Jasmin and Hahn, Horst and Dasgupta, Subho (2018) High performance printed oxide field-effect transistors processed using photonic curing. In: NANOTECHNOLOGY, 29 (23).
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Abstract
Oxide semiconductors are highly promising candidates for the most awaited, next-generation electronics, namely, printed electronics. As a fabrication route for the solution-processed/printed oxide semiconductors, photonic curing is becoming increasingly popular, as compared to the conventional thermal curing method; the former offers numerous advantages over the latter, such as low process temperatures and short exposure time and thereby, high throughput compatibility. Here, using dissimilar photonic curing concepts (UV-visible light and UV-laser), we demonstrate facile fabrication of high performance In2O3 field-effect transistors (FETs). Beside the processing related issues (temperature, time etc.), the other known limitation of oxide electronics is the lack of high performance p-type semiconductors, which can be bypassed using unipolar logics from high mobility n-type semiconductors alone. Interestingly, here we have found that our chosen distinct photonic curing methods can offer a large variation in threshold voltage, when they are fabricated from the same precursor ink. Consequently, both depletion and enhancement-mode devices have been achieved which can be used as the pull-up and pull-down transistors in unipolar inverters. The present device fabrication recipe demonstrates fast processing of low operation voltage, high performance FETs with large threshold voltage tunability.
Item Type: | Journal Article |
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Publication: | NANOTECHNOLOGY |
Publisher: | IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
Additional Information: | Copy right for this article belong to IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
Date Deposited: | 04 May 2018 18:50 |
Last Modified: | 04 May 2018 18:50 |
URI: | http://eprints.iisc.ac.in/id/eprint/59681 |
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