Enhancement of electron emission efficiency of Mo tips by diamondlike carbon coatings

被引：78

作者：

Chuang, FY

Sun, CY

Cheng, HF

Huang, CM

Lin, IN

机构：

[1] NATL TAIWAN NORMAL UNIV,DEPT PHYS,TAIPEI 117,TAIWAN

[2] ITRI,ELECTR RES & SERV ORG,HSINCHU 300,TAIWAN

[3] NATL TSING HUA UNIV,CTR MAT SCI,HSINCHU 300,TAIWAN

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 12期

关键词：

D O I：

10.1063/1.115899

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of diamondlike carbon (DLC) films coated by pulsed laser deposition technique on the electron emission characteristics of Mo tips is examined. Turn-on voltage (V-0) was lowered from 40 V for Mo tips to 22 V for DLC coated Mo tips and maximum anode current (I-A) was increased from similar to 44 mu A for Mo tips to similar to 2.0 mA for DLC coated Mo tips. Maximum anode current (I-A) for the DLC coated Mo tips, however, decreased during operation. Raman spectroscopy and selected area diffraction (SAD) in transmission electron microscopy (TEM) revealed that the degradation of electron emission behavior can be ascribed to the conversion of sp(3)-bonds, characteristic for diamond, to sp(2)-bonds, characteristics for graphite. The transformation of the structure is assumed to be induced by the local heat from the DLC coatings. (C) 1996 American Institute of Physics.

引用

页码：1666 / 1668

页数：3

共 13 条

[1] CHOI WB, 1995, 8 IVMC 95, P315
[2] LASER PLASMA SOURCE OF AMORPHIC DIAMOND
COLLINS, CB
DAVANLOO, F
JUENGERMAN, EM
OSBORN, WR
JANDER, DR
[J]. APPLIED PHYSICS LETTERS, 1989, 54 (03) : 216 - 218
[3] USE OF RAMAN-SCATTERING TO INVESTIGATE DISORDER AND CRYSTALLITE FORMATION IN AS-DEPOSITED AND ANNEALED CARBON-FILMS
DILLON, RO
WOOLLAM, JA
KATKANANT, V
[J]. PHYSICAL REVIEW B, 1984, 29 (06): : 3482 - 3489
[4] DIAMOND COLD-CATHODE
GEIS, MW
EFREMOW, NN
WOODHOUSE, JD
MCALEESE, MD
MARCHYWKA, M
SOCKER, DG
HOCHEDEZ, JF
[J]. IEEE ELECTRON DEVICE LETTERS, 1991, 12 (08) : 456 - 459
[5] QUANTUM PHOTOYIELD OF DIAMOND(111) - STABLE NEGATIVE-AFFINITY EMITTER
HIMPSEL, FJ
KNAPP, JA
VANVECHTEN, JA
EASTMAN, DE
[J]. PHYSICAL REVIEW B, 1979, 20 (02): : 624 - 627
[6] KIM JM, 1995, 8 IVMC 95, P305
[7] FIELD-EMISSION CHARACTERISTICS OF DIAMOND-COATED SILICON FIELD EMITTERS
LIU, J
ZHIRNOV, VV
MYERS, AF
WOJAK, GJ
CHOI, WB
HREN, JJ
WOLTER, SD
MCCLURE, MT
STONER, BR
GLASS, JT
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1995, 13 (02): : 422 - 426
[8] FABRICATION OF DIAMOND TIPS BY THE MICROWAVE PLASMA CHEMICAL-VAPOR-DEPOSITION TECHNIQUE
LIU, N
MA, Z
CHU, X
HU, T
XUE, Z
JIANG, X
PANG, S
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1994, 12 (03): : 1712 - 1715
[9] ON THE SHORT-RANGE ATOMIC-STRUCTURE OF NON-CRYSTALLINE CARBON
MILDNER, DFR
CARPENTER, JM
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1982, 47 (03) : 391 - 402
[10] PULSED LASER DEPOSITION OF DIAMOND-LIKE CARBON-FILMS
PAPPAS, DL
SAENGER, KL
BRULEY, J
KRAKOW, W
CUOMO, JJ
GU, T
COLLINS, RW
[J]. JOURNAL OF APPLIED PHYSICS, 1992, 71 (11) : 5675 - 5684

← 1 2 →