Study on Self-Organized High-Brightness Nanocarbon Electron Source Fabricated by Field Emission Induced Growth

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560024
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: Nagoya University
• Principal Investigator: NAKAHARA Hitoshi 名古屋大学, 工学(系)研究科(研究院), 助教 (20293649)
• Co-Investigator(Renkei-kenkyūsha): SAITO Yahachi 名古屋大学, 大学院工学研究科, 教授 (90144203)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 電界放出電子源 / 電子顕微鏡 / ナノカーボン

Outline of Final Research Achievements

In this study, high-brightness nanocarbon field emission electron emitter was successfully fabricated by using a field emission induced growth (FEIG) method, which can be used for an electron microscopy. The nanocarbon emitter is made of a cluster of carbon nanocapsules having a diameter of about 1 nm, and it achieves more than 1 order of higher brightness than a conventional single crystalline tungsten emitter. Because of self alignment nature of the FEIG method, the grown nanocarbon emitter is easy to beam alignment in a conventional electron gun. Furthermore, it works under the same order of extraction voltage as a single crystalline tungsten emitter, so that it has been demonstrated that it has high adaptability to existing field emission electron guns.

Free Research Field

表面物理、ナノ材料応用