Design criteria for transparent single-wall carbon nanotube thin-film transistors

Date

2006-04-01

Author

Ünalan, Hüsnü Emrah
Kanwal, A
Du Pasquier, A
Chhowalla, M

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A study based on two-dimensional percolation theory yielding quantitative parameters for optimum connectivity of transparent single-wall carbon nanotube (SWNT) thin films is reported. Optimum SWNT concentration in the filtrated solution was found to be 0.1 mg/L with a volume of 30 mL. Such parameters lead to SWNT fractions in the films of approximately Phi = 1.8 x 10(-3), much below the metallic percolation threshold, which is found to be similar to Phi(c) = 5.5 x 10(-3). Therefore, the performance of transparent carbon nanotube thin-film transistors is limited by the metallic SWNTs, even below their percolation threshold. We show how this effect is related to hopping or tunneling between neighboring metallic tubes.

Subject Keywords

Decomposition, Percolation, Networks

URI

https://hdl.handle.net/11511/47224

Journal

NANO LETTERS

DOI

https://doi.org/10.1021/nl052406l

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

H. E. Ünalan, A. Kanwal, A. Du Pasquier, and M. Chhowalla, “Design criteria for transparent single-wall carbon nanotube thin-film transistors,” NANO LETTERS, pp. 677–682, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47224.