The influence of the arrangement and spacing of CNT column array on the characteristic of field emission

Kyusung Han; Dohan Jun; Nguyen Tuan Hong; Soonil Lee; SangSik Yang

doi:10.1117/12.842887

4 February 2010 The influence of the arrangement and spacing of CNT column array on the characteristic of field emission

Kyusung Han, Dohan Jun, Nguyen Tuan Hong, Soonil Lee, SangSik Yang

Author Affiliations +

Proceedings Volume 7592, Reliability, Packaging, Testing, and Characterization of MEMS/MOEMS and Nanodevices IX; 75920T (2010) https://doi.org/10.1117/12.842887
Event: SPIE MOEMS-MEMS, 2010, San Francisco, California, United States

Abstract

The electric field is affected by the arrangement of the vertically aligned carbon nanotube (VACNT) columns in field emission devices. We fabricated VACNT column array for use in micro time-of- flight mass spectrometer (TOF MS) and investigated the influence of the VACNT column array on the characteristics of field emission. According to the electric field distribution simulation based on FEMLAB, the field screening effect depends on the CNT arrangement and the pitch-to-height ratio. The different types of VACNT column array cathodes were fabricated and tested for field emission. All these VACNT column array cathodes showed excellent field emission properties and a trend consistent with electric field distribution simulation.

Citation Download Citation

Kyusung Han, Dohan Jun, Nguyen Tuan Hong, Soonil Lee, and SangSik Yang "The influence of the arrangement and spacing of CNT column array on the characteristic of field emission", Proc. SPIE 7592, Reliability, Packaging, Testing, and Characterization of MEMS/MOEMS and Nanodevices IX, 75920T (4 February 2010); https://doi.org/10.1117/12.842887

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