Activation-free printed carbon nanotube field emitters

Yong C. Kim; Jung N. Hur; Il H. Kim; Sang H. Park; Tae W. Jung; Do Y. Kim; Ha J. Kim; Seung N. Cha; In T. Han; Jong M. Kim; Young H. Kim

doi:10.1088/0957-4484/22/43/435601

Activation-free printed carbon nanotube field emitters

Yong C. Kim, Jung N. Hur, Il H. Kim, Sang H. Park, Tae W. Jung, Do Y. Kim, Ha J. Kim, Seung N. Cha, In T. Han, Jong M. Kim, Young H. Kim

Samsung

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

4 Scopus citations

Abstract

When a carbon nanotube paste is formulated based on highly functional hyperbranched polymers such as dipentaerythritol hexaacrylate, the volume shrinkage during thermal curing builds up internal stress that generates microcrack patterns on the printed surface. The nanotubes exposed in the cracks emit electrons successfully at such an extremely low electric field as 0.5Vμm^-1, and reach 25.5mAcm^-2 of current density at 2Vμm^-1 from an optimized paste concerning mainly the size and spatial uniformity of the crack. In addition to the superior field emission properties with low manufacturing cost, this activation-free technology can provide a minimized nanohazard in the device fabrication process, compared to those conventional activation technologies developing serious nanoflakes by using destructive methods.

Original language	English
Article number	435601
Journal	Nanotechnology
Volume	22
Issue number	43
DOIs	https://doi.org/10.1088/0957-4484/22/43/435601
State	Published - 28 Oct 2011
Externally published	Yes

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10.1088/0957-4484/22/43/435601

Cite this

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title = "Activation-free printed carbon nanotube field emitters",

abstract = "When a carbon nanotube paste is formulated based on highly functional hyperbranched polymers such as dipentaerythritol hexaacrylate, the volume shrinkage during thermal curing builds up internal stress that generates microcrack patterns on the printed surface. The nanotubes exposed in the cracks emit electrons successfully at such an extremely low electric field as 0.5Vμm-1, and reach 25.5mAcm-2 of current density at 2Vμm-1 from an optimized paste concerning mainly the size and spatial uniformity of the crack. In addition to the superior field emission properties with low manufacturing cost, this activation-free technology can provide a minimized nanohazard in the device fabrication process, compared to those conventional activation technologies developing serious nanoflakes by using destructive methods.",

author = "Kim, \{Yong C.\} and Hur, \{Jung N.\} and Kim, \{Il H.\} and Park, \{Sang H.\} and Jung, \{Tae W.\} and Kim, \{Do Y.\} and Kim, \{Ha J.\} and Cha, \{Seung N.\} and Han, \{In T.\} and Kim, \{Jong M.\} and Kim, \{Young H.\}",

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doi = "10.1088/0957-4484/22/43/435601",

language = "English",

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T1 - Activation-free printed carbon nanotube field emitters

AU - Kim, Yong C.

AU - Hur, Jung N.

AU - Kim, Il H.

AU - Park, Sang H.

AU - Jung, Tae W.

AU - Kim, Do Y.

AU - Kim, Ha J.

AU - Cha, Seung N.

AU - Han, In T.

AU - Kim, Jong M.

AU - Kim, Young H.

PY - 2011/10/28

Y1 - 2011/10/28

N2 - When a carbon nanotube paste is formulated based on highly functional hyperbranched polymers such as dipentaerythritol hexaacrylate, the volume shrinkage during thermal curing builds up internal stress that generates microcrack patterns on the printed surface. The nanotubes exposed in the cracks emit electrons successfully at such an extremely low electric field as 0.5Vμm-1, and reach 25.5mAcm-2 of current density at 2Vμm-1 from an optimized paste concerning mainly the size and spatial uniformity of the crack. In addition to the superior field emission properties with low manufacturing cost, this activation-free technology can provide a minimized nanohazard in the device fabrication process, compared to those conventional activation technologies developing serious nanoflakes by using destructive methods.

AB - When a carbon nanotube paste is formulated based on highly functional hyperbranched polymers such as dipentaerythritol hexaacrylate, the volume shrinkage during thermal curing builds up internal stress that generates microcrack patterns on the printed surface. The nanotubes exposed in the cracks emit electrons successfully at such an extremely low electric field as 0.5Vμm-1, and reach 25.5mAcm-2 of current density at 2Vμm-1 from an optimized paste concerning mainly the size and spatial uniformity of the crack. In addition to the superior field emission properties with low manufacturing cost, this activation-free technology can provide a minimized nanohazard in the device fabrication process, compared to those conventional activation technologies developing serious nanoflakes by using destructive methods.

UR - https://www.scopus.com/pages/publications/80053489376

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DO - 10.1088/0957-4484/22/43/435601

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VL - 22

JO - Nanotechnology

JF - Nanotechnology

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Activation-free printed carbon nanotube field emitters

Abstract

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