Spectral features and voltage effects in high-field electroluminescence of AlN filamentary nanocrystals
| Autor: | Alexander Vokhmintsev, Yu.D. Afonin, Ilya Weinstein, D.V. Chaikin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Nanostructure business.industry Organic Chemistry 02 engineering and technology Electroluminescence 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Spectral line Electronic Optical and Magnetic Materials Inorganic Chemistry Superposition principle Field electron emission Nanocrystal 0103 physical sciences Optoelectronics High field Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology business Spectroscopy Voltage |
| Zdroj: | Optical Materials. 61:111-114 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2016.05.054 |
| Popis: | The high-field electroluminescence (EL) spectra for Al-rich AlN nanowhiskers varying applied voltage were studied. The observed 2.70 eV emission, which can be considered as superposition of two Gaussian bands in 2.75 and 2.53 eV, was analyzed. It was shown that Fowler-Nordheim effect took place in EL mechanism with participation of capturing levels of O N - and V N -centers when AlN nanowhiskers were exposed to an external field of 2.5 ÷ 10 V/μm. Obtained results and made conclusions are in a good agreement with independent electron field emission measurements for different one-dimensional AlN nanostructures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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