Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method
Willemite is a wide band gap semiconductor used in modern day technology for optoelectronics application. In this study, a new simple technique with less energy consumption is proposed. Willemite nanoparticles (NPs) were produced via a water–based solution consisting of a metallic precursor, polyvin...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/72480/1/Effects%20of%20Calcination%20Holding%20Time.pdf |
| _version_ | 1825950093337952256 |
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| author | Alibe, Ibrahim Mustapha Matori, Khamirul Amin Sidek, Abdul Aziz Yaakob, Yazid Rashid, Umer Alibe, Ali Mustapha Mohd Zaid, Mohd Hafiz Ahmad Khiri, Mohammad Zulhasif |
| author_facet | Alibe, Ibrahim Mustapha Matori, Khamirul Amin Sidek, Abdul Aziz Yaakob, Yazid Rashid, Umer Alibe, Ali Mustapha Mohd Zaid, Mohd Hafiz Ahmad Khiri, Mohammad Zulhasif |
| author_sort | Alibe, Ibrahim Mustapha |
| collection | UPM |
| description | Willemite is a wide band gap semiconductor used in modern day technology for optoelectronics application. In this study, a new simple technique with less energy consumption is proposed. Willemite nanoparticles (NPs) were produced via a water–based solution consisting of a metallic precursor, polyvinylpyrrolidone (PVP), and underwent a calcination process at 900 °C for several holding times between 1–4 h. The FT–IR and Raman spectra indicated the presence of metal oxide bands as well as the effective removal of PVP. The degree of the crystallization and formation of the NPs were determined by XRD. The mean crystallite size of the NPs was between 18.23–27.40 nm. The morphology, particle shape and size distribution were viewed with HR-TEM and FESEM analysis. The willemite NPs aggregate from the smaller to larger particles with an increase in calcination holding time from 1–4 h with the sizes ranging between 19.74–29.71 nm. The energy values obtained from the experimental band gap decreased with increasing the holding time over the range of 5.39 eV at 1 h to at 5.27 at 4 h. These values match well with band gap obtained from the Mott and Davis model for direct transition. The findings in this study are very promising and can justify the use of these novel materials as a potential candidate for green luminescent optoelectronic applications. |
| first_indexed | 2024-03-06T10:09:20Z |
| format | Article |
| id | upm.eprints-72480 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:09:20Z |
| publishDate | 2018 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-724802020-06-18T00:12:20Z http://psasir.upm.edu.my/id/eprint/72480/ Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method Alibe, Ibrahim Mustapha Matori, Khamirul Amin Sidek, Abdul Aziz Yaakob, Yazid Rashid, Umer Alibe, Ali Mustapha Mohd Zaid, Mohd Hafiz Ahmad Khiri, Mohammad Zulhasif Willemite is a wide band gap semiconductor used in modern day technology for optoelectronics application. In this study, a new simple technique with less energy consumption is proposed. Willemite nanoparticles (NPs) were produced via a water–based solution consisting of a metallic precursor, polyvinylpyrrolidone (PVP), and underwent a calcination process at 900 °C for several holding times between 1–4 h. The FT–IR and Raman spectra indicated the presence of metal oxide bands as well as the effective removal of PVP. The degree of the crystallization and formation of the NPs were determined by XRD. The mean crystallite size of the NPs was between 18.23–27.40 nm. The morphology, particle shape and size distribution were viewed with HR-TEM and FESEM analysis. The willemite NPs aggregate from the smaller to larger particles with an increase in calcination holding time from 1–4 h with the sizes ranging between 19.74–29.71 nm. The energy values obtained from the experimental band gap decreased with increasing the holding time over the range of 5.39 eV at 1 h to at 5.27 at 4 h. These values match well with band gap obtained from the Mott and Davis model for direct transition. The findings in this study are very promising and can justify the use of these novel materials as a potential candidate for green luminescent optoelectronic applications. MDPI 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72480/1/Effects%20of%20Calcination%20Holding%20Time.pdf Alibe, Ibrahim Mustapha and Matori, Khamirul Amin and Sidek, Abdul Aziz and Yaakob, Yazid and Rashid, Umer and Alibe, Ali Mustapha and Mohd Zaid, Mohd Hafiz and Ahmad Khiri, Mohammad Zulhasif (2018) Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method. Molecules, 23 (4). pp. 1-8. ISSN 1420-3049; ESSN: 1420-3049 https://www.mdpi.com/1420-3049/23/4/873 10.3390/molecules23040873 |
| spellingShingle | Alibe, Ibrahim Mustapha Matori, Khamirul Amin Sidek, Abdul Aziz Yaakob, Yazid Rashid, Umer Alibe, Ali Mustapha Mohd Zaid, Mohd Hafiz Ahmad Khiri, Mohammad Zulhasif Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| title | Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| title_full | Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| title_fullStr | Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| title_full_unstemmed | Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| title_short | Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| title_sort | effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method |
| url | http://psasir.upm.edu.my/id/eprint/72480/1/Effects%20of%20Calcination%20Holding%20Time.pdf |
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