Bright blue electroluminescence of diamond/CeF 3 composite films
| Autor: | Li-Jun Wang, Chen Haijiang, Ming-Li Song, Ling-Hong Liu, Xiao-Ping Wang, Ren-Min Ning, Ke Xiaolong |
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| Rok vydání: | 2016 |
| Předmět: |
Diffraction
Materials science Silicon business.industry Doping Diamond chemistry.chemical_element 02 engineering and technology General Chemistry Chemical vapor deposition engineering.material Electroluminescence 021001 nanoscience & nanotechnology 01 natural sciences Electron beam physical vapor deposition chemistry Excited state 0103 physical sciences engineering Optoelectronics General Materials Science 010306 general physics 0210 nano-technology business |
| Zdroj: | Carbon. 109:192-195 |
| ISSN: | 0008-6223 |
| DOI: | 10.1016/j.carbon.2016.07.061 |
| Popis: | Diamond/CeF 3 composite film (DCCF) electroluminescence devices was fabricated on highly doping n-type silicon substrates by using plasma chemical vapor deposition techniques and vacuum electron beam evaporation techniques. The films were characterized by field emission scanning electron microscopy (FE-SEM), Energy dispersive spectrum (EDS), X-ray diffraction (XRD) and electroluminescence (EL) spectrum. The EL spectrum of DCCFs shows that a strong broad peaks are located at 440 nm, and its EL brightness of the device can reach 10 cd/m 2 at a forward applied voltage of 120 V. The blue light emitting peak is assigned to the transitions from the excited 5d state to 4f ( 2 F 5/2 ) and 4f ( 2 F 7/2 ) states of Ce 3+ ions, respectively. |
| Databáze: | OpenAIRE |
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