Intrinsically ionic conductive cellulose nanopapers applied as all solid dielectrics for low voltage organic transistors

Shilei Dai, Yingli Chu, Dapeng Liu, Fei Cao, Xiaohan Wu, Jiachen Zhou, Bilei Zhou, Yantao Chen and Jia Huang ()
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Shilei Dai: School of Materials Science and Engineering, Tongji University
Yingli Chu: School of Materials Science and Engineering, Tongji University
Dapeng Liu: School of Materials Science and Engineering, Tongji University
Fei Cao: Shanghai Institute of Ceramics, Chinese Academy of Science
Xiaohan Wu: School of Materials Science and Engineering, Tongji University
Jiachen Zhou: School of Materials Science and Engineering, Tongji University
Bilei Zhou: School of Materials Science and Engineering, Tongji University
Yantao Chen: School of Materials Science and Engineering, Tongji University
Jia Huang: School of Materials Science and Engineering, Tongji University

Nature Communications, 2018, vol. 9, issue 1, 1-10

Abstract: Abstract Biodegradability, low-voltage operation, and flexibility are important trends for the future organic electronics. High-capacitance dielectrics are essential for low-voltage organic field-effect transistors. Here we report the application of environmental-friendly cellulose nanopapers as high-capacitance dielectrics with intrinsic ionic conductivity. Different with the previously reported liquid/electrolyte-gated dielectrics, cellulose nanopapers can be applied as all-solid dielectrics without any liquid or gel. Organic field-effect transistors fabricated with cellulose nanopaper dielectrics exhibit good transistor performances under operation voltage below 2 V, and no discernible drain current change is observed when the device is under bending with radius down to 1 mm. Interesting properties of the cellulose nanopapers, such as ionic conductivity, ultra-smooth surface (~0.59 nm), high transparency (above 80%) and flexibility make them excellent candidates as high-capacitance dielectrics for flexible, transparent and low-voltage electronics.

Date: 2018
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DOI: 10.1038/s41467-018-05155-y

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