Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process
Nanocrystals of neodymium aluminate (NdAlO3) are synthesized using an optimized single step auto-ignition citrate complex combustion process. The combustion product was characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy a...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/5326/1/fist-2014-02.pdf |
| _version_ | 1796989949339238400 |
|---|---|
| author | Harilal, Midhun Nair, V. M. Wariar, P. R. S. Padmasree, K. P. M. M., Yusoff Rajan, Jose |
| author_facet | Harilal, Midhun Nair, V. M. Wariar, P. R. S. Padmasree, K. P. M. M., Yusoff Rajan, Jose |
| author_sort | Harilal, Midhun |
| collection | UMP |
| description | Nanocrystals of neodymium aluminate (NdAlO3) are synthesized using an optimized single step auto-ignition citrate complex combustion process. The combustion product was characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and Ultraviolet–visible reflection spectroscopy. The combustion product is single phase and composed of aggregates of nanocrystals of sizes in the range 20–40 nm. The NdAlO3 crystallized in rhombohedral perovskite structure with lattice parameters a = 5.3223 Å and c = 12.9292 Å. The absorption spectrum of the NdAlO3 nanocrystals shows characteristic absorption bands of the Nd atom. The polycrystalline fluffy combustion product is sintered to high density (~ 97%) at ~ 1450 °C for 4 h and the microstructure was characterized by scanning electron microscopy. The electrical properties of the sintered product were studied using dielectric measurements. The sintered NdAlO3 has a dielectric constant (εr) and a dielectric loss (tan δ) of 21.9 and ~ 10− 3 at 5 MHz, respectively. |
| first_indexed | 2024-03-06T11:44:35Z |
| format | Article |
| id | UMPir5326 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:44:35Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | UMPir53262018-10-16T03:04:16Z http://umpir.ump.edu.my/id/eprint/5326/ Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process Harilal, Midhun Nair, V. M. Wariar, P. R. S. Padmasree, K. P. M. M., Yusoff Rajan, Jose QD Chemistry Nanocrystals of neodymium aluminate (NdAlO3) are synthesized using an optimized single step auto-ignition citrate complex combustion process. The combustion product was characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and Ultraviolet–visible reflection spectroscopy. The combustion product is single phase and composed of aggregates of nanocrystals of sizes in the range 20–40 nm. The NdAlO3 crystallized in rhombohedral perovskite structure with lattice parameters a = 5.3223 Å and c = 12.9292 Å. The absorption spectrum of the NdAlO3 nanocrystals shows characteristic absorption bands of the Nd atom. The polycrystalline fluffy combustion product is sintered to high density (~ 97%) at ~ 1450 °C for 4 h and the microstructure was characterized by scanning electron microscopy. The electrical properties of the sintered product were studied using dielectric measurements. The sintered NdAlO3 has a dielectric constant (εr) and a dielectric loss (tan δ) of 21.9 and ~ 10− 3 at 5 MHz, respectively. Elsevier 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5326/1/fist-2014-02.pdf Harilal, Midhun and Nair, V. M. and Wariar, P. R. S. and Padmasree, K. P. and M. M., Yusoff and Rajan, Jose (2014) Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process. Materials Characterization, 90. pp. 7-12. ISSN 1044-5803. (Published) http://dx.doi.org/10.1016/j.matchar.2014.01.011 DOI: 10.1016/j.matchar.2014.01.011 |
| spellingShingle | QD Chemistry Harilal, Midhun Nair, V. M. Wariar, P. R. S. Padmasree, K. P. M. M., Yusoff Rajan, Jose Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process |
| title | Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process |
| title_full | Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process |
| title_fullStr | Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process |
| title_full_unstemmed | Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process |
| title_short | Electrical and Optical Properties of NdAlO3 Synthesized by an Optimized Combustion Process |
| title_sort | electrical and optical properties of ndalo3 synthesized by an optimized combustion process |
| topic | QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/5326/1/fist-2014-02.pdf |
| work_keys_str_mv | AT harilalmidhun electricalandopticalpropertiesofndalo3synthesizedbyanoptimizedcombustionprocess AT nairvm electricalandopticalpropertiesofndalo3synthesizedbyanoptimizedcombustionprocess AT wariarprs electricalandopticalpropertiesofndalo3synthesizedbyanoptimizedcombustionprocess AT padmasreekp electricalandopticalpropertiesofndalo3synthesizedbyanoptimizedcombustionprocess AT mmyusoff electricalandopticalpropertiesofndalo3synthesizedbyanoptimizedcombustionprocess AT rajanjose electricalandopticalpropertiesofndalo3synthesizedbyanoptimizedcombustionprocess |