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Influence of UV irradiation and humidity on a low-cost ZnO nanoparticle TFT for flexible electronics

 
: Vidor, F.F.; Meyers, T.; Hilleringmann, U.; Wirth, G.I.

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Institute of Electrical and Electronics Engineers -IEEE-:
IEEE 15th International Conference on Nanotechnology, NANO 2015. Proceedings : 27-30 July 2015, Rome, Italy
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4673-8156-7
pp.1179-1181
International Conference on Nanotechnology (NANO) <15, 2015, Rome>
English
Conference Paper
Fraunhofer ENAS ()

Abstract
Nowadays, flexible and transparent electronics are receiving much attention in industry and research groups. Aiming at a suitable device for this technology, we present a low-cost and low-temperature integration process for ZnO nanoparticle thin-film transistors using a spray coating technique. An inverted coplanar structure with high-k gate dielectric filled with TiO2 nanoparticles is used as transistor template. The transistor's stability when exposed to dry air, wet air and ultra-violet irradiation is studied. Conjointly, a model for the observed effects based on the adsorption of oxygen and water molecules at the nanoparticle surface is proposed.

: http://publica.fraunhofer.de/documents/N-379527.html