TY - JOUR
T1 - Comparison of structure and electron-field-emission behavior of chemical-vapor-deposited diamond and pulsed-laser-deposited diamond-like carbon films
AU - Cheng, Hsiu Fung
AU - Chen, Yi Chun
AU - Wang, Yin Ling
AU - Chen, Yuan Yu
AU - Tsau, Bor Jau
AU - Chen, Tang
AU - Lin, I. Nan
PY - 2000
Y1 - 2000
N2 - The correlation between the structure and the electron-field-emission behavior of chemical-vapor-deposited (CVD) diamond films and those of pulsed-laser-deposited (PLD) diamond-like carbon (DLC) films is investigated. The CVD films contain crystalline diamonds (sp3-bonds) separated from amorphous carbon (sp2-bonds), possessing a large electron-field-emission current density [(Je)CVD = 140 μA/cm2 at 21.6 V/μm], a low turn-on field [(E0)CVD = 10 V/μm] and a single-value effective work function [(φe)CVD = 0.082 eV]. In contrast, the pulsed-laser-deposited DLC films exhibit even better electron field emission properties [(Je)DLC = 320 μA/cm2 at 21.6 V/μm, (E0)DLC -8 V/μm] and a wide range of effective work functions [(φe)DLC = 0.016-0.031 eV]. The superior electron-field-emission properties of DLC films, as compared with those of CVD diamonds, are ascribed to their nanostructured grains, which contain a mixture of sp3-bonds and sp2-bonds.
AB - The correlation between the structure and the electron-field-emission behavior of chemical-vapor-deposited (CVD) diamond films and those of pulsed-laser-deposited (PLD) diamond-like carbon (DLC) films is investigated. The CVD films contain crystalline diamonds (sp3-bonds) separated from amorphous carbon (sp2-bonds), possessing a large electron-field-emission current density [(Je)CVD = 140 μA/cm2 at 21.6 V/μm], a low turn-on field [(E0)CVD = 10 V/μm] and a single-value effective work function [(φe)CVD = 0.082 eV]. In contrast, the pulsed-laser-deposited DLC films exhibit even better electron field emission properties [(Je)DLC = 320 μA/cm2 at 21.6 V/μm, (E0)DLC -8 V/μm] and a wide range of effective work functions [(φe)DLC = 0.016-0.031 eV]. The superior electron-field-emission properties of DLC films, as compared with those of CVD diamonds, are ascribed to their nanostructured grains, which contain a mixture of sp3-bonds and sp2-bonds.
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U2 - 10.1143/jjap.39.1866
DO - 10.1143/jjap.39.1866
M3 - Article
AN - SCOPUS:0942305792
SN - 0021-4922
VL - 39
SP - 1866
EP - 1871
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 4 A
ER -