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

Husnu Emrah Unalan; Giovanni Fanchini; Alokik Kanwal; Aurelien Du Pasquier; Manish Chhowalla

doi:10.1021/nl052406l

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

Husnu Emrah Unalan, Giovanni Fanchini, Alokik Kanwal, Aurelien Du Pasquier, Manish Chhowalla

Research output: Contribution to journal › Article › peer-review

158 Scopus citations

Abstract

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 Φ = 1.8 × 10 ^-3, much below the metallic percolation threshold, which is found to be ∼Φ _c = 5.5 × 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.

Original language	English (US)
Pages (from-to)	677-682
Number of pages	6
Journal	Nano Letters
Volume	6
Issue number	4
DOIs	https://doi.org/10.1021/nl052406l
State	Published - Apr 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl052406l

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title = "Design criteria for transparent single-wall carbon nanotube thin-film transistors",

abstract = "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 Φ = 1.8 × 10 -3, much below the metallic percolation threshold, which is found to be ∼Φ c = 5.5 × 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.",

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year = "2006",

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volume = "6",

pages = "677--682",

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T1 - Design criteria for transparent single-wall carbon nanotube thin-film transistors

AU - Unalan, Husnu Emrah

AU - Fanchini, Giovanni

AU - Kanwal, Alokik

AU - Pasquier, Aurelien Du

AU - Chhowalla, Manish

PY - 2006/4

Y1 - 2006/4

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AB - 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 Φ = 1.8 × 10 -3, much below the metallic percolation threshold, which is found to be ∼Φ c = 5.5 × 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.

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

Abstract

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