Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique
Zinc sulphide (ZnS) nanoparticles were synthesized via simple, rapid and energy efficient microwave technique. The obtained nanoparticles were found to possess a cubic structure with an average particle size of less than 5 nm. By changing the microwave irradiation time from 5 to 30 min, the average...
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| Format: | Article |
| Language: | English |
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National Institute of Materials Physics, National Institute of Optoelectronics
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/52281/ http://psasir.upm.edu.my/id/eprint/52281/1/Influence%20of%20exposure%20time%20on%20structural%2C%20optical%20and%20electrical%20properties%20of%20zinc%20sulphide%20nanoparticles%20synthesized%20by%20microwave%20technique.pdf |
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| author | Soltani, Nayereh Dehzangi, Arash Saion, Elias Yeop Majlis, Burhanuddin Zare, Mohammad Reza Kharazmi, Alireza Navasery, Manizheh |
| author_facet | Soltani, Nayereh Dehzangi, Arash Saion, Elias Yeop Majlis, Burhanuddin Zare, Mohammad Reza Kharazmi, Alireza Navasery, Manizheh |
| author_sort | Soltani, Nayereh |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Zinc sulphide (ZnS) nanoparticles were synthesized via simple, rapid and energy efficient microwave technique. The obtained nanoparticles were found to possess a cubic structure with an average particle size of less than 5 nm. By changing the microwave irradiation time from 5 to 30 min, the average size of nanoparticles increased and a broader size distribution was obtained. The degree of crystallinity also increased with increasing irradiation time and reached to maximum at 25 min and then fell by rising further the irradiation time. The absorption spectra of prepared ZnS nanoparticles revealed a blue shift in the band gap energy with respect to the bulk counterpart owing to the quantum confinement effect. The photoluminescence study showed the emission intensity increased with increasing the irradiation time up to 25 min due to the increment in crystallinity of the obtained nanoparticles. Further study indicated that the microwave irradiation time has also influenced the electrical properties of nanoparticles, so that the DC conductivity increased from 1.08×10-6 to 1.67×10-4 S/m for irradiation time of 5-25min and decreased to 1.74×10-6 S/m for further irradiation time at 30 min. The dielectric constant showed a power law dispersion with no observed peak for all samples with different irradiation times. |
| first_indexed | 2025-11-15T10:32:07Z |
| format | Article |
| id | upm-52281 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:32:07Z |
| publishDate | 2013 |
| publisher | National Institute of Materials Physics, National Institute of Optoelectronics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-522812017-06-05T05:39:31Z http://psasir.upm.edu.my/id/eprint/52281/ Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique Soltani, Nayereh Dehzangi, Arash Saion, Elias Yeop Majlis, Burhanuddin Zare, Mohammad Reza Kharazmi, Alireza Navasery, Manizheh Zinc sulphide (ZnS) nanoparticles were synthesized via simple, rapid and energy efficient microwave technique. The obtained nanoparticles were found to possess a cubic structure with an average particle size of less than 5 nm. By changing the microwave irradiation time from 5 to 30 min, the average size of nanoparticles increased and a broader size distribution was obtained. The degree of crystallinity also increased with increasing irradiation time and reached to maximum at 25 min and then fell by rising further the irradiation time. The absorption spectra of prepared ZnS nanoparticles revealed a blue shift in the band gap energy with respect to the bulk counterpart owing to the quantum confinement effect. The photoluminescence study showed the emission intensity increased with increasing the irradiation time up to 25 min due to the increment in crystallinity of the obtained nanoparticles. Further study indicated that the microwave irradiation time has also influenced the electrical properties of nanoparticles, so that the DC conductivity increased from 1.08×10-6 to 1.67×10-4 S/m for irradiation time of 5-25min and decreased to 1.74×10-6 S/m for further irradiation time at 30 min. The dielectric constant showed a power law dispersion with no observed peak for all samples with different irradiation times. National Institute of Materials Physics, National Institute of Optoelectronics 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/52281/1/Influence%20of%20exposure%20time%20on%20structural%2C%20optical%20and%20electrical%20properties%20of%20zinc%20sulphide%20nanoparticles%20synthesized%20by%20microwave%20technique.pdf Soltani, Nayereh and Dehzangi, Arash and Saion, Elias and Yeop Majlis, Burhanuddin and Zare, Mohammad Reza and Kharazmi, Alireza and Navasery, Manizheh (2013) Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique. Chalcogenide Letters, 10 (1). pp. 27-37. ISSN 1584-8663 http://chalcogen.ro/index.php/journals/chalcogenide-letters/11-cl/97-volume-10-number-1-january-2013 |
| spellingShingle | Soltani, Nayereh Dehzangi, Arash Saion, Elias Yeop Majlis, Burhanuddin Zare, Mohammad Reza Kharazmi, Alireza Navasery, Manizheh Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| title | Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| title_full | Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| title_fullStr | Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| title_full_unstemmed | Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| title_short | Influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| title_sort | influence of exposure time on structural, optical and electrical properties of zinc sulphide nanoparticles synthesized by microwave technique |
| url | http://psasir.upm.edu.my/id/eprint/52281/ http://psasir.upm.edu.my/id/eprint/52281/ http://psasir.upm.edu.my/id/eprint/52281/1/Influence%20of%20exposure%20time%20on%20structural%2C%20optical%20and%20electrical%20properties%20of%20zinc%20sulphide%20nanoparticles%20synthesized%20by%20microwave%20technique.pdf |