Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach
ZnO/ZnAl2O4 nanocomposites (Z r A-MMO) with homogeneously distributed ZnAl2O4 nanoparticles in the interpenetrating network of ZnO were successfully prepared via two-step solution process, namely co-precipitation of Zn/Al–NO3 layered double hydroxide (Z r A-LDH) precursor and thermal treatment metho...
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| Format: | Article |
| Language: | English |
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Springer
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73989/ http://psasir.upm.edu.my/id/eprint/73989/1/73989.pdf |
| _version_ | 1848857410187296768 |
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| author | Salih, Ethar Yahya Mohd Sabri, Mohd Faizul Hussein, Mohd Zobir Sulaiman, Khaulah Mohd Said, Suhana Saifullah, Bullo Ali Bashir, Mohamed Bashir |
| author_facet | Salih, Ethar Yahya Mohd Sabri, Mohd Faizul Hussein, Mohd Zobir Sulaiman, Khaulah Mohd Said, Suhana Saifullah, Bullo Ali Bashir, Mohamed Bashir |
| author_sort | Salih, Ethar Yahya |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | ZnO/ZnAl2O4 nanocomposites (Z r A-MMO) with homogeneously distributed ZnAl2O4 nanoparticles in the interpenetrating network of ZnO were successfully prepared via two-step solution process, namely co-precipitation of Zn/Al–NO3 layered double hydroxide (Z r A-LDH) precursor and thermal treatment methods. The effect of cation molar ratio (r) between Zn2+ and Al3+ on the morphological, structural, thermal, optical as well as electrical properties of ZnO-based MMOs was investigated in detail. A mechanism study related to the surface modification, optical band edge alteration as well as improvement of electrical conductivity after phase transformation from LDH to MMO was also elucidated. The optimum Z5A-MMO sample presents the highest electrical conductivity of 8.23 × 10−3 S/cm as compared to 7.26 × 10−7 S/cm for the standard ZnO nanocrystal. It is believed that the bathochromic shift in optical band gap of Z5A-MMO plays a pivotal role in facilitating the photoemission process and leads to the increase in number of carrier concentration in the sample. This method could provide alternative pathways for fabricating a high electrical conductivity MMO-based material and benefit in future optoelectronic devices. |
| first_indexed | 2025-11-15T11:57:06Z |
| format | Article |
| id | upm-73989 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:57:06Z |
| publishDate | 2018 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-739892025-06-10T07:33:22Z http://psasir.upm.edu.my/id/eprint/73989/ Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach Salih, Ethar Yahya Mohd Sabri, Mohd Faizul Hussein, Mohd Zobir Sulaiman, Khaulah Mohd Said, Suhana Saifullah, Bullo Ali Bashir, Mohamed Bashir ZnO/ZnAl2O4 nanocomposites (Z r A-MMO) with homogeneously distributed ZnAl2O4 nanoparticles in the interpenetrating network of ZnO were successfully prepared via two-step solution process, namely co-precipitation of Zn/Al–NO3 layered double hydroxide (Z r A-LDH) precursor and thermal treatment methods. The effect of cation molar ratio (r) between Zn2+ and Al3+ on the morphological, structural, thermal, optical as well as electrical properties of ZnO-based MMOs was investigated in detail. A mechanism study related to the surface modification, optical band edge alteration as well as improvement of electrical conductivity after phase transformation from LDH to MMO was also elucidated. The optimum Z5A-MMO sample presents the highest electrical conductivity of 8.23 × 10−3 S/cm as compared to 7.26 × 10−7 S/cm for the standard ZnO nanocrystal. It is believed that the bathochromic shift in optical band gap of Z5A-MMO plays a pivotal role in facilitating the photoemission process and leads to the increase in number of carrier concentration in the sample. This method could provide alternative pathways for fabricating a high electrical conductivity MMO-based material and benefit in future optoelectronic devices. Springer 2018-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73989/1/73989.pdf Salih, Ethar Yahya and Mohd Sabri, Mohd Faizul and Hussein, Mohd Zobir and Sulaiman, Khaulah and Mohd Said, Suhana and Saifullah, Bullo and Ali Bashir, Mohamed Bashir (2018) Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach. Journal of Materials Science, 53. pp. 581-590. ISSN 0022-2461; eISSN: 1573-4803 https://link.springer.com/article/10.1007/s10853-017-1504-9 10.1007/s10853-017-1504-9 |
| spellingShingle | Salih, Ethar Yahya Mohd Sabri, Mohd Faizul Hussein, Mohd Zobir Sulaiman, Khaulah Mohd Said, Suhana Saifullah, Bullo Ali Bashir, Mohamed Bashir Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach |
| title | Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach |
| title_full | Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach |
| title_fullStr | Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach |
| title_full_unstemmed | Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach |
| title_short | Structural, optical and electrical properties of ZnO/ZnAl2O4 nanocomposites prepared via thermal reduction approach |
| title_sort | structural, optical and electrical properties of zno/znal2o4 nanocomposites prepared via thermal reduction approach |
| url | http://psasir.upm.edu.my/id/eprint/73989/ http://psasir.upm.edu.my/id/eprint/73989/ http://psasir.upm.edu.my/id/eprint/73989/ http://psasir.upm.edu.my/id/eprint/73989/1/73989.pdf |