Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Patent
1996-11-19
1998-04-28
King, Roy V.
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
427533, 427122, 313311, 445 50, C23C 1626, B05D 306
Patent
active
057441952
ABSTRACT:
Applicants have discovered methods for making, treating and using diamonds which substantially enhance their capability for low voltage emission. Specifically, applicants have discovered that defect-rich diamonds--diamonds grown or treated to increase the concentration of defects--have enhanced properties of low voltage emission. Defect-rich diamonds are characterized in Raman spectroscopy by a diamond peak at 1332 cm.sup.-1 broadened by a full width at half maximum .DELTA.K in the range 5-15 cm.sup.-1 (and preferably 7-11 cm.sup.-1). Such defect-rich diamonds can emit electron current densities of 0.1 mA/mm.sup.2 or more at a low applied field of 25 V/.mu.m or less. Particularly advantageous structures use such diamonds in an array of islands or particles each less than 10 .mu.m in diameter at fields of 15 V/.mu.m or less.
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Jin Sung-ho
Kochanski Gregory Peter
Seibles Lawrence
Zhu Wei
Books, Esq. Glen E.
King Roy V.
Lucent Technologies - Inc.
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