Cathodoluminescence of Cr-doped diamond-like carbon film by filtered cathodic vacuum arc plasma
| Autor: | Yu-Hsiang Yang, Wei-Jen Hsieh, Li-Shin Cheng, Meng-Wen Huang, Chun-Chun Lin, Jui-Yun Jao, Han C. Shih, Fuh-Sheng Shieu |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Diamond-like carbon Analytical chemistry General Physics and Astronomy Cathodoluminescence Surfaces and Interfaces General Chemistry Plasma Vacuum arc Condensed Matter Physics Spectral line Surfaces Coatings and Films symbols.namesake X-ray photoelectron spectroscopy symbols Raman spectroscopy Luminescence |
| Zdroj: | Applied Surface Science. 261:21-24 |
| ISSN: | 0169-4332 |
| Popis: | Cr doped diamond-like carbon (DLC:Cr) film was synthesized in various flow rates of C 2 H 2 /Ar under a substrate voltage of −50 V at 500 °C by a filtered cathodic vacuum arc plasma. This work has found that the structure of the films was correlated to the flow rate of C 2 H 2 /Ar but the luminescence properties are similar. The cathodoluminescence spectra of DLC:Cr films obtained at 1.9–2.4 eV verifies that the luminescence from the films is in the visible region. The incorporation of Cr into the carbon network results in red emission shifted to 1.99 eV and the orange emission (2.03 eV) also appeared due to the transitions between chromium-related electron levels and σ* states. The peak at 2.10 eV may result from the defects of the structures in DLC:Cr films. |
| Databáze: | OpenAIRE |
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