Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications

The study focused on synthesizing organic-inorganic Bi-halides perovskite compounds using different halides (iodide, bromide, and chloride) in a low-toxic and eco-friendly manner. The aim was to develop Pb-free perovskite materials that are less hazardous for workers in the photonics industry and th...

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Main Author:	Heng, Han Yann
Format:	Thesis
Language:	English
Published:	2023
Subjects:	QD701-731 Photochemistry
Online Access:	http://eprints.usm.my/60395/1/HENG%20HAN%20YANN%20-%20TESIS24.pdf
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spelling	my-usm-ep.603952024-04-19T03:34:40Z Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications 2023-09 Heng, Han Yann QD701-731 Photochemistry The study focused on synthesizing organic-inorganic Bi-halides perovskite compounds using different halides (iodide, bromide, and chloride) in a low-toxic and eco-friendly manner. The aim was to develop Pb-free perovskite materials that are less hazardous for workers in the photonics industry and that can be produced using inexpensive and less complicated processes. In this regards, a hydrophobic phenylammonium cation ([(C6H5)NH3]+) was selected, which is known to contributed to a better sample stability. The synthesis methods involved three different approaches: one step solvent (OSS), OSS added oleic acid (OA), and a non-coordinated solvent method at different temperatures. The stability of the samples were evaluated, and it was observed that the ones synthesized at 60 °C exhibited the best stability for most of the solvents and types of halides. The strong ionic interaction between the BiX63- anion and the short short PhA+ cations in the 0D structure greatly contributed to its stability. In general, the PhA4BiCl6 sample showed the highest stability among the halides due to the stronger attraction between nucleus and electron. The study also involved the growth of a single crystal of PhA4BiI6 using a solvent evaporation technique from which the structure of the zero-dimensional (0D) perovskite compounds was determined, supported by field emission scanning electron microscopy with energy-dispersive X-ray (FESEM-EDX) and Fourier transform infrared (FTIR) spectroscopy results 2023-09 Thesis http://eprints.usm.my/60395/ http://eprints.usm.my/60395/1/HENG%20HAN%20YANN%20-%20TESIS24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Institut Penyelidikan dan Teknologi Nano Optoelektronik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QD701-731 Photochemistry
spellingShingle	QD701-731 Photochemistry Heng, Han Yann Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications
description	The study focused on synthesizing organic-inorganic Bi-halides perovskite compounds using different halides (iodide, bromide, and chloride) in a low-toxic and eco-friendly manner. The aim was to develop Pb-free perovskite materials that are less hazardous for workers in the photonics industry and that can be produced using inexpensive and less complicated processes. In this regards, a hydrophobic phenylammonium cation ([(C6H5)NH3]+) was selected, which is known to contributed to a better sample stability. The synthesis methods involved three different approaches: one step solvent (OSS), OSS added oleic acid (OA), and a non-coordinated solvent method at different temperatures. The stability of the samples were evaluated, and it was observed that the ones synthesized at 60 °C exhibited the best stability for most of the solvents and types of halides. The strong ionic interaction between the BiX63- anion and the short short PhA+ cations in the 0D structure greatly contributed to its stability. In general, the PhA4BiCl6 sample showed the highest stability among the halides due to the stronger attraction between nucleus and electron. The study also involved the growth of a single crystal of PhA4BiI6 using a solvent evaporation technique from which the structure of the zero-dimensional (0D) perovskite compounds was determined, supported by field emission scanning electron microscopy with energy-dispersive X-ray (FESEM-EDX) and Fourier transform infrared (FTIR) spectroscopy results
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Heng, Han Yann
author_facet	Heng, Han Yann
author_sort	Heng, Han Yann
title	Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications
title_short	Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications
title_full	Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications
title_fullStr	Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications
title_full_unstemmed	Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications
title_sort	synthesis and characterization of organic-inorganic bismuth halide perovskites for photonics applications
granting_institution	Universiti Sains Malaysia
granting_department	Institut Penyelidikan dan Teknologi Nano Optoelektronik
publishDate	2023
url	http://eprints.usm.my/60395/1/HENG%20HAN%20YANN%20-%20TESIS24.pdf
_version_	1804888929644576768

Synthesis And Characterization Of Organic-inorganic Bismuth Halide Perovskites For Photonics Applications

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