Staff View: Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method

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...

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Main Authors:	Alibe, Ibrahim Mustapha, Matori, Khamirul Amin, Sidek, Abdul Aziz, Yaakob, Yazid, Rashid, Umer, Alibe, Ali Mustapha, Mohd Zaid, Mohd Hafiz, Ahmad Khiri, Mohammad Zulhasif
Format:	Article
Language:	English
Published:	MDPI 2018
Online Access:	http://psasir.upm.edu.my/id/eprint/72480/1/Effects%20of%20Calcination%20Holding%20Time.pdf http://psasir.upm.edu.my/id/eprint/72480/ https://www.mdpi.com/1420-3049/23/4/873
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spelling	my.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
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
language	English
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.
format	Article
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
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
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
title	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_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_sort	effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method
publisher	MDPI
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/72480/1/Effects%20of%20Calcination%20Holding%20Time.pdf http://psasir.upm.edu.my/id/eprint/72480/ https://www.mdpi.com/1420-3049/23/4/873
_version_	1671341091000942592
score	13.211869

Effects of calcination holding time on properties of wide band gap willemite semiconductor nanoparticles by the polymer thermal treatment method

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