Presentation 2010-10-25
Field emission mechanism of n-type semiconducting diamond with negative electron affinity
Takatoshi YAMADA, Masataka HASEGAWA, Christoph E. NEBEL, Yuki KUDO, Hisato YAMAGUCHI, Tomoaki MASUZAWA, Ken OKANO,
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Abstract(in English) In order to utilize negative electron affinities (NEA) on diamond surfaces, field emission from n-type diamond with NEA was investigated. It was confirmed, by ultraviolet photoelectron spectroscopy (UPS), that hydrogen-plasma treated n-type diamond surface has NEA. Field electron emission properties as a function of anode-diamond distances were measured and a potential drop in vacuum was evaluated. It was found that electric fields of over few 10V/μm were required to emit electrons from n-type diamond NEA surface. It was considered that such higher electric fields were necessary to reduce an internal barrier at NEA surface. From the field emission results, the internal barrier height was estimated to be about 3.3eV.
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Keyword(in English) n-type diamond / negative electron affinity / band bending / field emission
Paper # ED2010-131
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Committee ED
Conference Date 2010/10/18(1days)
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Registration To Electron Devices (ED)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Field emission mechanism of n-type semiconducting diamond with negative electron affinity
Sub Title (in English)
Keyword(1) n-type diamond
Keyword(2) negative electron affinity
Keyword(3) band bending
Keyword(4) field emission
1st Author's Name Takatoshi YAMADA
1st Author's Affiliation NanoTube Research Center, National Institute of Advanced Industrial Science and Technology (AIST)()
2nd Author's Name Masataka HASEGAWA
2nd Author's Affiliation NanoTube Research Center, National Institute of Advanced Industrial Science and Technology (AIST)
3rd Author's Name Christoph E. NEBEL
3rd Author's Affiliation Fraunhofer Institute for Applied Solid State Physics
4th Author's Name Yuki KUDO
4th Author's Affiliation Dept. of Material Science, International Christian University (ICU)
5th Author's Name Hisato YAMAGUCHI
5th Author's Affiliation Dept. of Material Science, International Christian University (ICU):(Present office)Dept. of Material Science and Engineering, Rutgers University
6th Author's Name Tomoaki MASUZAWA
6th Author's Affiliation Dept. of Material Science, International Christian University (ICU)
7th Author's Name Ken OKANO
7th Author's Affiliation Dept. of Material Science, International Christian University (ICU)
Date 2010-10-25
Paper # ED2010-131
Volume (vol) vol.110
Number (no) 249
Page pp.pp.-
#Pages 5
Date of Issue