.Effect of nitrogen pressure on optical properties and microstructure of diamond-like carbon films grown by pulsed laser deposition[J].Optoelectronics Letters,2009,5(2):117-119 Effect of nitrogen pressure on optical properties and microstructure of diamond-like carbon films grown by pulsed laser deposition 丁旭丽  李清山  孔祥和 DING Xu-Li(College of Physics and Engineering, Qufu Normal University, Qufu 273165, China) ;LI Qing-Shan(College of Physics and Engineering, Qufu Normal University, Qufu 273165, China;Department of Physics, Ludong University, Yantai 264025, China) ;KONG Xiang-he(Department of Physics, Ludong University, Yantai 264025, China) ? Abstract:       The effect of nitrogen pressure on optical properties of hydrogen-free diamond-like carbon (DLC) films deposited by pulsed laser ablation graphite in different background pressures of nitrogen is reported. By varying nitrogen pressures from 0.05 to 15.00 Pa, the photoluminescence is gradually increased and optical transmittance is gradually decreased. Atomic force microscopy (AFM) is used to observe the surface morphology of the DLC films. The results indicate that the surface becomes unsmoothed and there are some globose particles on the films surface with the rise of nitrogen pressures. The microstructure of the films is characterized using Raman spectroscopy. Hits: 3583 Download times: 192 View Full Text    Download reader