Multi wall carbon nanotubes assisted synthesis of YVO4:Eu3+ nanocomposites for display device applications
| Autor: | Kiwan Jang, Jung Hyun Jeong, Bhaskar Kumar Grandhe, Soung Soo Yi, Ho-Sueb Lee, Dong-Soo Shin, Vengala Rao Bandi, Sundara Ramaprabhu |
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| Rok vydání: | 2012 |
| Předmět: |
Photoluminescence spectrum
Photoluminescence Materials science XRD Carbon nanotubes Phosphor Carbon nanotube Photo-luminescent properties Ceramic matrix composite Excitation wavelength Industrial and Manufacturing Engineering Nanocomposites law.invention Characterization techniques symbols.namesake Europium law Red emissions Solid state reaction method Composite material Fourier transform infrared spectroscopy chemistry.chemical_classification Nanocomposite Optical properties Mechanical Engineering Device application Photoluminescence efficiency Polymer Ionic liquids FTIR chemistry E. Powder processing Mechanics of Materials Ceramics and Composites symbols Solid state reactions Coprecipitation method Display devices Raman scattering |
| Zdroj: | Composites Part B: Engineering. 43:1192-1195 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2011.08.011 |
| Popis: | YVO 4:Eu 3+ nanocomposites have been synthesized by means of a modified co-precipitation method (CP-CNT). Multi walled carbon nanotubes (MWCNT's) have been employed in the synthesis of the YVO 4:Eu 3+ nanocomposites to enhance its photoluminescence efficiency. The prepared nanocomposites were thoroughly characterized using the characterization techniques namely XRD, SEM, FTIR and Raman scattering. To evaluate the potentiality of the prepared nanocomposites, the same phosphor has also been prepared by using co-precipitation (CP) method without employing multi walled carbon nanotubes and also by means of conventional solid state reaction method (SSR). The photoluminescence spectra of YVO 4:Eu 3+ nanocomposites have shown stronger red emission at 619 nm ( 5D 0 ? 7F 2) for both the excitation wavelengths (254 and 393 nm) than the other two prepared samples. The effect of MWCNT's on photoluminescent properties of the YVO 4:Eu 3+ nanocomposites is also explained. � 2011 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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