THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES

In this research, hematite (α-Fe2O3) film was synthesised to study the effect of annealing temperature on its crystallinity, optical and electrical properties. Through a sonicated solution immersion technique, hematite films were deposited on a fluorine-doped tin oxide (FTO) glass substrate. In the...

Full description

Bibliographic Details
Published in:Jurnal Teknologi
Main Author: Ahmad W.R.W.; Mamat M.H.; Zoolfakar A.S.; Khusaimi Z.; Ashar N.I.K.; Parimon N.; Vasimalai N.; Shameem Banu I.B.; Mahmood M.R.
Format: Article
Language:English
Published: Penerbit UTM Press 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141738460&doi=10.11113%2fjurnalteknologi.v84.19353&partnerID=40&md5=87e071223896ed86dbe62ba2170adef8
id 2-s2.0-85141738460
spelling 2-s2.0-85141738460
Ahmad W.R.W.; Mamat M.H.; Zoolfakar A.S.; Khusaimi Z.; Ashar N.I.K.; Parimon N.; Vasimalai N.; Shameem Banu I.B.; Mahmood M.R.
THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
2022
Jurnal Teknologi
84
6-Feb
10.11113/jurnalteknologi.v84.19353
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141738460&doi=10.11113%2fjurnalteknologi.v84.19353&partnerID=40&md5=87e071223896ed86dbe62ba2170adef8
In this research, hematite (α-Fe2O3) film was synthesised to study the effect of annealing temperature on its crystallinity, optical and electrical properties. Through a sonicated solution immersion technique, hematite films were deposited on a fluorine-doped tin oxide (FTO) glass substrate. In the synthesis process, 0.2 M ferric chloride (FeCl3·6H2O) was used as a precursor, 0.2 M urea (NH2CONH2) as the stabilizer, and de-ionized (DI) water as a solvent to produce 200 ml of aqueous solution. During the annealing treatment, we varied the temperatures at 350 ºC, 450 ºC and 500 ºC. The X-ray diffraction (XRD) pattern revealed the presence of peaks of 2θ angles between 20° to 90°, corresponding to (104), (110), (214), (125) and (128) planes, which exhibited crystalline structures of rhombohedral with diffraction peaks of hematite phase (α-Fe2O3). Optical characterisations showed that the transmittances of all samples were close to 100% in the high wavelength level of the visible light region, which is close to the infrared spectrum. Absorption of hematite samples was found to be more than 0.6 a.u. in the low wavelength level of the visible light region close to the ultraviolet spectrum and close to 0 in the high wavelength level of the visible light region close to the infrared spectrum. A sample with an annealing temperature of 500 °C has the lowest transmission and the highest absorbance in the visible region due to dim pigments in the hematite film. Electrical measurements have shown that the hematite samples have resistance values ranging from 13 to 62 Ω. Hematite samples annealed at 500 °C demonstrated suitable properties for humidity sensing applications. © 2022 Penerbit UTM Press.
Penerbit UTM Press
1279696
English
Article
All Open Access; Gold Open Access
author Ahmad W.R.W.; Mamat M.H.; Zoolfakar A.S.; Khusaimi Z.; Ashar N.I.K.; Parimon N.; Vasimalai N.; Shameem Banu I.B.; Mahmood M.R.
spellingShingle Ahmad W.R.W.; Mamat M.H.; Zoolfakar A.S.; Khusaimi Z.; Ashar N.I.K.; Parimon N.; Vasimalai N.; Shameem Banu I.B.; Mahmood M.R.
THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
author_facet Ahmad W.R.W.; Mamat M.H.; Zoolfakar A.S.; Khusaimi Z.; Ashar N.I.K.; Parimon N.; Vasimalai N.; Shameem Banu I.B.; Mahmood M.R.
author_sort Ahmad W.R.W.; Mamat M.H.; Zoolfakar A.S.; Khusaimi Z.; Ashar N.I.K.; Parimon N.; Vasimalai N.; Shameem Banu I.B.; Mahmood M.R.
title THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
title_short THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
title_full THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
title_fullStr THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
title_full_unstemmed THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
title_sort THE PROPERTIES OF SONICATED IMMERSION GROWN HEMATITE FILMS AT VARIOUS ANNEALING TEMPERATURES
publishDate 2022
container_title Jurnal Teknologi
container_volume 84
container_issue 6-Feb
doi_str_mv 10.11113/jurnalteknologi.v84.19353
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141738460&doi=10.11113%2fjurnalteknologi.v84.19353&partnerID=40&md5=87e071223896ed86dbe62ba2170adef8
description In this research, hematite (α-Fe2O3) film was synthesised to study the effect of annealing temperature on its crystallinity, optical and electrical properties. Through a sonicated solution immersion technique, hematite films were deposited on a fluorine-doped tin oxide (FTO) glass substrate. In the synthesis process, 0.2 M ferric chloride (FeCl3·6H2O) was used as a precursor, 0.2 M urea (NH2CONH2) as the stabilizer, and de-ionized (DI) water as a solvent to produce 200 ml of aqueous solution. During the annealing treatment, we varied the temperatures at 350 ºC, 450 ºC and 500 ºC. The X-ray diffraction (XRD) pattern revealed the presence of peaks of 2θ angles between 20° to 90°, corresponding to (104), (110), (214), (125) and (128) planes, which exhibited crystalline structures of rhombohedral with diffraction peaks of hematite phase (α-Fe2O3). Optical characterisations showed that the transmittances of all samples were close to 100% in the high wavelength level of the visible light region, which is close to the infrared spectrum. Absorption of hematite samples was found to be more than 0.6 a.u. in the low wavelength level of the visible light region close to the ultraviolet spectrum and close to 0 in the high wavelength level of the visible light region close to the infrared spectrum. A sample with an annealing temperature of 500 °C has the lowest transmission and the highest absorbance in the visible region due to dim pigments in the hematite film. Electrical measurements have shown that the hematite samples have resistance values ranging from 13 to 62 Ω. Hematite samples annealed at 500 °C demonstrated suitable properties for humidity sensing applications. © 2022 Penerbit UTM Press.
publisher Penerbit UTM Press
issn 1279696
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
_version_ 1809677891162603520