(19)
(11) EP 1 916 223 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
23.07.2008 Bulletin 2008/30

(43) Date of publication:
30.04.2008 Bulletin 2008/18

(21) Application number: 07119133.2

(22) Date of filing: 24.10.2007
(51) International Patent Classification (IPC): 
C01B 31/02(2006.01)
H01J 1/304(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 24.10.2006 RU 2006137605
12.12.2006 KR 20060126401

(71) Applicants:
  • Samsung SDI Co., Ltd.
    Suwon-si Gyeonggi-do (KR)
  • Ioffe Physico- Technical Institute of Russian Academy of Sciences
    Saint-Petersburg 194021 (RU)

(72) Inventors:
  • Kim, Yoon-Jin
    Gyeonggi-do (KR)
  • Zang, Dong-Sik
    Gyeonggi-do (KR)
  • Kim, Jae-Myung
    Gyeonggi-do (KR)
  • Moon, Hee-Sung
    Gyeonggi-do (KR)
  • Garifovich, Gabdullin Pavel
    191126, St. Petersburg (RU)
  • Nikolayevich, Davydov Sergey
    194064, St. Petersburg (RU)
  • Vasilyevich, Korablev Vadim
    195274, St. Petersburg (RU)
  • Efimovich, Kravchik Alexander
    198259, St. Petersburg (RU)
  • Vasilyevich, Sokolov Vasily
    198096, St. Petersburg (RU)
  • Alexandrovna, Kukushkina Yulia
    195027, St. Petersburg (RU)
  • Fedorovich, Tereshchenko Gennady
    117218, Moscow (RU)

(74) Representative: Hengelhaupt, Jürgen et al
Anwaltskanzlei Gulde Hengelhaupt Ziebig & Schneider Wallstrasse 58/59
10179 Berlin
10179 Berlin (DE)

   


(54) Method of preparing a carbonaceous material for an emitter of an electron emission device


(57) Provided are carbide derived carbon materials prepared by thermochemically reacting carbide compounds and a halogen containing gas and extracting all atoms of the carbide compounds except carbon atoms, wherein the intensity ratios of the graphite G band at 1590 cm-1 to the disordered-induced D band at 1350 cm-1 are in the range of 0.3 through 5 when the carbide derived carbon is analyzed using Raman peak analysis, wherein the BET surface area of the carbide derived carbon is 1000 m2/g or more, wherein a weak peak or wide single peak of the graphite (002) surface is seen at 2θ = 25° when the carbide derived carbon is analyzed using X-ray diffractometry, and wherein the electron diffraction pattern of the carbide derived carbon is the halo pattern typical of amorphous carbon when the carbide derived carbon is analyzed using electron microscopy.