Electron Field Emission of CN x Thin Films Prepared by Low Pressure Plasma Enhanced Chemical Vapour Deposition

Autor: Ye Ming-sheng, Zhang Zhihong, Lu Xian-feng, Guo Huaixi, Li Jin-chai
Rok vydání: 2002
Předmět:
Zdroj: Chinese Physics Letters. 19:416-418
ISSN: 1741-3540
0256-307X
Popis: CNx thin films were prepared using low pressure plasma enhanced chemical vapour deposition, and then bombarded by low-energy N2+. The compositions before and after N2+ bombardment were compared using x-ray photoelectron spectroscopy. The electron field emission characteristics of CNx thin films before and after N2+ bombardment were studied under the pressure of 10-6 Pa. For the samples, the turn-on emission field decreased from 2.5 V/µm to 1.2 V/µm while the stable current density increased from 0.5 mA/cm2 to a value larger than 1 mA/cm2 before and after the bombardment. Our results illustrate that the field emission characteristics were improved after the bombardment of N+2.
Databáze: OpenAIRE