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3 October 2022 High-performance organic transistors: gigahertz and beyond (Conference Presentation)
Karl Leo
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Proceedings Volume PC12211, Organic and Hybrid Field-Effect Transistors XXI; PC122110M (2022) https://doi.org/10.1117/12.2632251
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States
Abstract
In this talk, I will we present new approaches based on highly ordered organic multilayer structures which have the potential to increase device performance by orders of magnitude. Triclinic rubrene crystals are created by heating of amorphous layers and can be electrically doped during the epitaxial growth process to achieve hole or electron conduction. Analysis of the space charge limited current in these films reveals record vertical mobilities of 10cm2/Vs. To demonstrate the performance of this materials system, pin-diodes with record threshold frequency of 3.7 GHz are built, paving the way for future high-performance organic electronic devices based on carefully designed heterostructures. Furthermore, these structures allow comparatively long minority carrier diffusion lengths, allowing to realize the first organic bipolar transistors.
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Karl Leo "High-performance organic transistors: gigahertz and beyond (Conference Presentation)", Proc. SPIE PC12211, Organic and Hybrid Field-Effect Transistors XXI, PC122110M (3 October 2022); https://doi.org/10.1117/12.2632251
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KEYWORDS
Transistors
Organic electronics
Crystals
Diffusion
Electronic circuits
Heterojunctions
Manufacturing
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