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Electrostatically-sprayed carbon electrodes for high performance organic complementary circuits
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DOI：10.1038/s41598-022-19387-y.png)
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摘要
En 中文
Organic thin-film transistors (OTFTs) are promising building blocks of flexible printable electronic devices. Similar to inorganic FETs, OTFTs are heterostructures consisting of metals, insulators, and semiconductors, in which nanoscale interfaces between different components should be precisely engineered. However, OTFTs use noble metals, such as gold, as electrodes, which has been a bottleneck in terms of cost reduction and low environmental loading. In this study, we demonstrate that graphite-based carbon electrodes can be deposited and patterned directly onto an organic single-crystalline thin film via electrostatic spray coating. The present OTFTs exhibited reasonably high field-effect mobilities of up to 11 cm(2) V-1 s(-1) for p-type and 1.4 cm(2) V-1 s(-1) for n-type with no significant deterioration during electrostatic spray processes. We also demonstrate two significant milestones from the viewpoint of material science: a complementary circuit, an inverter consisting of p- and n-type OTFTs, and an operatable metal-free OTFT composed of fully carbon-based materials. These results constitute a key step forward in the further development of printed metal-free integrated circuits.
Keyword:
SEMICONDUCTORS
MORPHOLOGY
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期刊
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3.9
论文数:
28.3W
被引数:
83.5W
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