Direct Observation of Field Emission Sites in a Single Multiwalled Carbon Nanotube by Lorenz Microscopy

• Fujieda Tadashi

  Materials Research Laboratory, Hitachi, Ltd.

• Hidaka Kishio

  Materials Research Laboratory, Hitachi, Ltd.

• Hayashibara Mituo

  Materials Research Laboratory, Hitachi, Ltd.

• Kamino Takeo

  Hitachi Science Systems, Ltd.

• Ose Yoichi

  Hitachi High-Technologies, Ltd.

• Abe Hidekazu

  National Institute of Advanced Science and Technology

• Shimizu Tetuo

  National Institute of Advanced Science and Technology

• Tokumoto Hiroshi

  National Institute of Advanced Science and Technology Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University

Abstract

Emission sites were observed as bright spots near the tip end of a multiwalled carbon nanotube (MWNT) by means of Lorenz microscopy. The bright spots appeared above electric fields as electrons were emitted. A marked fluctuation was observed in the emission current above 20–30 μA, which was closely related to structural changes at the tip of the MWNT. The layers of the MWNT were peeled off during field emission and they functioned as the second emission sites for the concentration of electric field.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 44 (4A), 1661-1664, 2005

  The Japan Society of Applied Physics

Keywords

• multiwalled carbon nanotube
• field emission
• transmission electron microscopy
• Lorenz microscopy

Details

• CRID: 1390001206264315520
• NII Article ID: 10015469932
• NII Article ID: 210000057559
• NII Article ID: 130004533617
• NII Book ID: AA10457675
• DOI: 10.1143/jjap.44.1661
• ISSN: 13474065
• ISSN: 00214922
• NDL BIB ID: 7302359
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7302359
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.1661
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.1661/pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed