期刊
ADVANCED ELECTRONIC MATERIALS
卷 1, 期 12, 页码 -出版社
WILEY-BLACKWELL
DOI: 10.1002/aelm.201500301
关键词
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资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2014R1A1A4A01009458]
- Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning, Korea [2011-0031628]
Printing technologies are instrumental to the fabrication of low-cost lightweight flexible electronic devices and circuits, which are necessary to produce wearable electronic applications. However, attaining fully printed devices on flexible films over large areas has typically been a challenge. Here, the fabrication of fully drawn all-organic field-effect transistor (FET) arrays on mechanically flexible substrates using a capillary-pen printing method is demonstrated. A highly crystalline organic semiconductor (active layer), a smooth insulating polymer (dielectric layer), and a conducting polymer (source, drain, and gate electrodes) are deposited from solution sequentially. The bottom-gate bottom-contact FETs drawn onto flexible substrates exhibit superior field-effect mobilities of up to 0.54 cm(2) V-1 s(-1), good reproducibility, operational stability, and mechanical bendability. Furthermore, to emphasize the methodological advantages of the capillary-pen printing, an organic FET (OFET) array on a curvilinear substrate of a plastic straw and the repairing concept for a broken electrical circuit are demonstrated. These results indicate that capillary pen printing shows promise as a manufacturing technique for a wide range of large-area electronic applications.
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