Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite
Nowadays there is a continuously increasing worldwide concern for the utilization of magnetic semiconductor nanocomposites. We synthesized bifunctional magnetic–luminescent nanocomposites with Fe3O4 nanoparticles as the cores and CdSe as the shells by a facile direct precipitation method. Transmissi...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/06/epjconf_ayss18_02002.pdf |
| _version_ | 1818597329529208832 |
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| author | Habib Shaimaa A. Mohamed Mona B. Saafan Samia A. Meaz Talaat M. |
| author_facet | Habib Shaimaa A. Mohamed Mona B. Saafan Samia A. Meaz Talaat M. |
| author_sort | Habib Shaimaa A. |
| collection | DOAJ |
| description | Nowadays there is a continuously increasing worldwide concern for the utilization of magnetic semiconductor nanocomposites. We synthesized bifunctional magnetic–luminescent nanocomposites with Fe3O4 nanoparticles as the cores and CdSe as the shells by a facile direct precipitation method. Transmission electron microscopy (TEM) images revealed that the obtained bifunctional nanocomposites had a core–shell structure, in a spherical shape with a particle radius of about 10.3nm, and the shell thickness of about 2.2nm. The flower shape is due to the inhomogeneous growth of CdSe due to the presence of many active sites which turn to be nucleation centers for the CdSe on the surface of the nano-magnetite. The X-ray diffraction (XRD) patterns showed a cubic spinel structure of the Fe3O4 core. Magnetic measurements indicated that the presence of CdSe in the composite reduces its magnetic properties. Optical measurements of the Fe3O4/CdSe nanocomposite show that the prepared samples have dual functions, optical tunable band gap of the semiconductor quantum dots and the magnetic properties of magnetite. This type of composites would be considered as dilute magnetic semiconductors (DMS). |
| first_indexed | 2024-12-16T11:46:05Z |
| format | Article |
| id | doaj.art-ab81daa80c6f47b492bb177a0596c6b3 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T11:46:05Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-ab81daa80c6f47b492bb177a0596c6b32022-12-21T22:32:50ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012010200210.1051/epjconf/201920102002epjconf_ayss18_02002Synthesis, characterization and promising properties of Fe3O4/CdSe nanocompositeHabib Shaimaa A.0Mohamed Mona B.1Saafan Samia A.2Meaz Talaat M.3Physics Department, Faculty of Science, Tanta UniversityChemistry Department, National Institute of Laser Enhanced Sciences, Cairo UniversityPhysics Department, Faculty of Science, Tanta UniversityPhysics Department, Faculty of Science, Tanta UniversityNowadays there is a continuously increasing worldwide concern for the utilization of magnetic semiconductor nanocomposites. We synthesized bifunctional magnetic–luminescent nanocomposites with Fe3O4 nanoparticles as the cores and CdSe as the shells by a facile direct precipitation method. Transmission electron microscopy (TEM) images revealed that the obtained bifunctional nanocomposites had a core–shell structure, in a spherical shape with a particle radius of about 10.3nm, and the shell thickness of about 2.2nm. The flower shape is due to the inhomogeneous growth of CdSe due to the presence of many active sites which turn to be nucleation centers for the CdSe on the surface of the nano-magnetite. The X-ray diffraction (XRD) patterns showed a cubic spinel structure of the Fe3O4 core. Magnetic measurements indicated that the presence of CdSe in the composite reduces its magnetic properties. Optical measurements of the Fe3O4/CdSe nanocomposite show that the prepared samples have dual functions, optical tunable band gap of the semiconductor quantum dots and the magnetic properties of magnetite. This type of composites would be considered as dilute magnetic semiconductors (DMS).https://www.epj-conferences.org/articles/epjconf/pdf/2019/06/epjconf_ayss18_02002.pdf |
| spellingShingle | Habib Shaimaa A. Mohamed Mona B. Saafan Samia A. Meaz Talaat M. Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite EPJ Web of Conferences |
| title | Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite |
| title_full | Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite |
| title_fullStr | Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite |
| title_full_unstemmed | Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite |
| title_short | Synthesis, characterization and promising properties of Fe3O4/CdSe nanocomposite |
| title_sort | synthesis characterization and promising properties of fe3o4 cdse nanocomposite |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2019/06/epjconf_ayss18_02002.pdf |
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