High performance field emission properties of graphite nanoplatelet field emitters

Yenan Song; Dong Hoon Shin; Yoon Ho Song; Yahachi Saito; Cheol Jin Lee

doi:10.1063/1.4818892

High performance field emission properties of graphite nanoplatelet field emitters

Yenan Song, Dong Hoon Shin, Yoon Ho Song, Yahachi Saito, Cheol Jin Lee

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

13 Citations (Scopus)

Abstract

Graphite nanoplatelet (GNP) that consists of several tens of layers of graphene sheets is a promising candidate for electron field emission. The GNP emitter shows good field emission properties with a high emission current and a robust long-term stability because of the sharp edges, the high aspect ratio, and the stacked graphene sheets. Most of the electrons are emitted from the sharp edges of GNPs. The GNP emitters fabricated by the screen printing method reveal the turn-on electric field of 1.77 V/μm, the threshold electric field of 4.47 V/μm, the maximum emission current density of 39 mA/cm², and the good emission stability for 20 h with little degradation rate of the emission current. The GNP field emitters can be a good candidate for several field emission applications such as flat lamps, field emission displays, and x-ray sources.

Original language	English
Article number	073112
Journal	Applied Physics Letters
Volume	103
Issue number	7
DOIs	https://doi.org/10.1063/1.4818892
Publication status	Published - 2013 Aug 12

Bibliographical note

Funding Information:
This work was supported by World Class University (WCU, R32-2008-000-10082-0) Project through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology. This work was also supported by the Korea Basic Science Institute and ETRI Creative R&D program (12ZF1100).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "High performance field emission properties of graphite nanoplatelet field emitters",

abstract = "Graphite nanoplatelet (GNP) that consists of several tens of layers of graphene sheets is a promising candidate for electron field emission. The GNP emitter shows good field emission properties with a high emission current and a robust long-term stability because of the sharp edges, the high aspect ratio, and the stacked graphene sheets. Most of the electrons are emitted from the sharp edges of GNPs. The GNP emitters fabricated by the screen printing method reveal the turn-on electric field of 1.77 V/μm, the threshold electric field of 4.47 V/μm, the maximum emission current density of 39 mA/cm2, and the good emission stability for 20 h with little degradation rate of the emission current. The GNP field emitters can be a good candidate for several field emission applications such as flat lamps, field emission displays, and x-ray sources.",

author = "Yenan Song and {Hoon Shin}, Dong and Song, {Yoon Ho} and Yahachi Saito and {Jin Lee}, Cheol",

note = "Funding Information: This work was supported by World Class University (WCU, R32-2008-000-10082-0) Project through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology. This work was also supported by the Korea Basic Science Institute and ETRI Creative R&D program (12ZF1100).",

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doi = "10.1063/1.4818892",

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AU - Song, Yenan

AU - Hoon Shin, Dong

AU - Song, Yoon Ho

AU - Saito, Yahachi

AU - Jin Lee, Cheol

N1 - Funding Information: This work was supported by World Class University (WCU, R32-2008-000-10082-0) Project through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology. This work was also supported by the Korea Basic Science Institute and ETRI Creative R&D program (12ZF1100).

PY - 2013/8/12

Y1 - 2013/8/12

N2 - Graphite nanoplatelet (GNP) that consists of several tens of layers of graphene sheets is a promising candidate for electron field emission. The GNP emitter shows good field emission properties with a high emission current and a robust long-term stability because of the sharp edges, the high aspect ratio, and the stacked graphene sheets. Most of the electrons are emitted from the sharp edges of GNPs. The GNP emitters fabricated by the screen printing method reveal the turn-on electric field of 1.77 V/μm, the threshold electric field of 4.47 V/μm, the maximum emission current density of 39 mA/cm2, and the good emission stability for 20 h with little degradation rate of the emission current. The GNP field emitters can be a good candidate for several field emission applications such as flat lamps, field emission displays, and x-ray sources.

AB - Graphite nanoplatelet (GNP) that consists of several tens of layers of graphene sheets is a promising candidate for electron field emission. The GNP emitter shows good field emission properties with a high emission current and a robust long-term stability because of the sharp edges, the high aspect ratio, and the stacked graphene sheets. Most of the electrons are emitted from the sharp edges of GNPs. The GNP emitters fabricated by the screen printing method reveal the turn-on electric field of 1.77 V/μm, the threshold electric field of 4.47 V/μm, the maximum emission current density of 39 mA/cm2, and the good emission stability for 20 h with little degradation rate of the emission current. The GNP field emitters can be a good candidate for several field emission applications such as flat lamps, field emission displays, and x-ray sources.

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JF - Applied Physics Letters

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High performance field emission properties of graphite nanoplatelet field emitters

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