1. ITO-Free Organic Light-Emitting Transistors with Graphene Gate Electrode
- Author
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Caterina Soldano, Rita Rizzoli, Andrea Stefani, Guido Turatti, Luca Ortolani, Raffaella Capelli, Laura Basiricò, Giulio Paolo Veronese, Viviana Biondo, Michele Muccini, Vittorio Morandi, Gianluca Generali, Soldano, Caterina, Stefani, Andrea, Biondo, Viviana, Basiricò, Laura, Turatti, Guido, Generali, Gianluca, Ortolani, Luca, Morandi, Vittorio, Veronese, Giulio Paolo, Rizzoli, Rita, Capelli, Raffaella, and Muccini, Michele
- Subjects
Fabrication ,Materials science ,Nanotechnology ,Electroluminescence ,flexible electronics ,ITO-free electronics ,law.invention ,transparent conductive electrode ,law ,graphene ,organic light emitting transistors ,Electrical and Electronic Engineering ,organic light-emitting transistors (OLETs) ,Organic electronics ,transparent conductive electrodes ,business.industry ,Graphene ,Transistor ,ITO-free electronic ,Atomic and Molecular Physics, and Optics ,Flexible electronics ,Electronic, Optical and Magnetic Materials ,organic electronics ,few-layer graphene ,organic electronic ,Electrode ,Optoelectronics ,business ,Layer (electronics) ,Biotechnology - Abstract
In this work, we report on the fabrication and characterization of organic light-emitting transistors (OLETs) within an indium–tin-oxide (ITO)-free platform, using graphene-based transparent conductive electrodes in place of ITO as gate electrode. A direct comparison between twin bottom-gate/top-contacts OLETs, where a standard ITO layer is replaced with a film made of a few graphene layers, shows that comparable electrical characteristics can be obtained along with a clear improvement in the electroluminescence generation characteristics. Our experimental findings pave the way to the exploitation of graphene-based transparent conductive electrodes within this class of emerging devices on flexible substrates, further promoting the novel era of flexible organic electronics.
- Published
- 2014
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