Premium
Field emission from surface‐modified heavily phosphorus‐doped homoepitaxial (111) diamond
Author(s) -
Yamada Takatoshi,
Nebel Christoph E.,
Somu Kumaragurubaran,
Uetsuka Hiroshi,
Yamaguchi Hisato,
Kudo Yuki,
Okano Ken,
Shikata Shinichi
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200776325
Subject(s) - field electron emission , x ray photoelectron spectroscopy , diamond , reflection high energy electron diffraction , carbon fibers , doping , hydrogen , materials science , electron diffraction , surface reconstruction , analytical chemistry (journal) , chemistry , diffraction , electron , surface (topology) , optoelectronics , optics , chemical engineering , physics , geometry , organic chemistry , mathematics , quantum mechanics , chromatography , composite number , engineering , composite material
Field emission from heavily phosphorus‐doped homoepitaxial (111) diamonds after surface modifications are discussed. To develop a model for emission, we applied X‐ray photoelectron spectroscopy (XPS) to characterize surface properties of H‐plasma treated, oxidized and carbon‐reconstructed surfaces. In addition, reflection high energy electron diffraction (RHEED) is used to evaluate atomic arrangements. Atomic force microscopy (AFM) is used to investigate surface morphologies. From AFM, no major difference is observed between H‐terminated, oxidized and carbon reconstructed surfaces. Field emission proper‐ ties of carbon reconstructed surfaces show a lower threshold than hydrogen‐terminated or oxidized surfaces. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)