ultradispersed diamond powder;
laser ablation;
film deposition;
D O I:
10.1117/12.321527
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
Laser ablation of diamond compacts made of ultradispersed diamond powders was used for producing thin diamond films with thickness of about 1 mu m. X-ray and Raman analysing methods verified the fact of diamond phase transfer upon the substrate during the PLD process. The obtained films reveal electron field emission with the current density up to 10 mA/cm(2) at reduced electric field similar to 20 V/mu m and that may make it possible to produce flat cold emission cathodes of high area.