Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 25, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3050525
Keywords
conducting polymers; field effect transistors; invertors; organic semiconductors; polymer blends
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Funding
- Engineering and Physical Sciences Research Council (EPSRC)
- Research Councils U. K. (RCUK)
- EPSRC [EP/E02730X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E02730X/1] Funding Source: researchfish
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The prospect of realizing high-performance organic circuits via large-area fabrication is attractive for many applications of organic microelectronics. Here we report solution processed organic field-effect transistors and circuits based on polymer-small molecule blends comprising of polytriarylamine and 5,11-bis(triethylsilylethynyl) anthradithiophene. By optimizing blend composition and deposition conditions we are able to demonstrate short channel, bottom-gate, bottom-contact transistors with high mobility and excellent reproducibility. Using these transistors we have built unipolar voltage inverters and ring oscillators with a single stage delay of 712 ns. These are among the fastest organic circuits reported to date and could satisfy the performance requirements of low-end electronic applications.
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