Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier

Silica is one of the most efficient gas barrier materials, and hence is widely used as an encapsulating material for electronic devices. In general, the processing of silica is carried out at high temperatures, i.e., around 1000 °C. Recently, processing of silica has been carried out from a polymer...

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Autores principales:	Iftikhar Ahmed Channa, Aqeel Ahmed Shah, Muhammad Rizwan, Muhammad Atif Makhdoom, Ali Dad Chandio, Muhammad Ali Shar, Asif Mahmood
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	silica coatings polysilazane process optimization thin films room temperature cured PHPS oxygen and moisture permeability Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/9edd7e7ae9674a91a0411afb885cb4b8
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spelling	oai:doaj.org-article:9edd7e7ae9674a91a0411afb885cb4b82021-11-25T18:15:35ZProcess Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier10.3390/ma142270001996-1944https://doaj.org/article/9edd7e7ae9674a91a0411afb885cb4b82021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7000https://doaj.org/toc/1996-1944Silica is one of the most efficient gas barrier materials, and hence is widely used as an encapsulating material for electronic devices. In general, the processing of silica is carried out at high temperatures, i.e., around 1000 °C. Recently, processing of silica has been carried out from a polymer called Perhydropolysilazane (PHPS). The PHPS reacts with environmental moisture or oxygen and yields pure silica. This material has attracted many researchers and has been widely used in many applications such as encapsulation of organic light-emitting diodes (OLED) displays, semiconductor industries, and organic solar cells. In this paper, we have demonstrated the process optimization of the conversion of the PHPS into silica in terms of curing methods as well as curing the environment. Various curing methods including exposure to dry heat, damp heat, deep UV, and their combination under different environments were used to cure PHPS. FTIR analysis suggested that the quickest conversion method is the irradiation of PHPS with deep UV and simultaneous heating at 100 °C. Curing with this method yields a water permeation rate of 10<sup>−3</sup> g/(m<sup>2</sup>⋅day) and oxygen permeation rate of less than 10<sup>−1</sup> cm<sup>3</sup>/(m<sup>2</sup>·day·bar). Rapid curing at low-temperature processing along with barrier properties makes PHPS an ideal encapsulating material for organic solar cell devices and a variety of similar applications.Iftikhar Ahmed ChannaAqeel Ahmed ShahMuhammad RizwanMuhammad Atif MakhdoomAli Dad ChandioMuhammad Ali SharAsif MahmoodMDPI AGarticlesilica coatingspolysilazaneprocess optimizationthin filmsroom temperature cured PHPSoxygen and moisture permeabilityTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7000, p 7000 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	silica coatings polysilazane process optimization thin films room temperature cured PHPS oxygen and moisture permeability Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	silica coatings polysilazane process optimization thin films room temperature cured PHPS oxygen and moisture permeability Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Iftikhar Ahmed Channa Aqeel Ahmed Shah Muhammad Rizwan Muhammad Atif Makhdoom Ali Dad Chandio Muhammad Ali Shar Asif Mahmood Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier
description	Silica is one of the most efficient gas barrier materials, and hence is widely used as an encapsulating material for electronic devices. In general, the processing of silica is carried out at high temperatures, i.e., around 1000 °C. Recently, processing of silica has been carried out from a polymer called Perhydropolysilazane (PHPS). The PHPS reacts with environmental moisture or oxygen and yields pure silica. This material has attracted many researchers and has been widely used in many applications such as encapsulation of organic light-emitting diodes (OLED) displays, semiconductor industries, and organic solar cells. In this paper, we have demonstrated the process optimization of the conversion of the PHPS into silica in terms of curing methods as well as curing the environment. Various curing methods including exposure to dry heat, damp heat, deep UV, and their combination under different environments were used to cure PHPS. FTIR analysis suggested that the quickest conversion method is the irradiation of PHPS with deep UV and simultaneous heating at 100 °C. Curing with this method yields a water permeation rate of 10<sup>−3</sup> g/(m<sup>2</sup>⋅day) and oxygen permeation rate of less than 10<sup>−1</sup> cm<sup>3</sup>/(m<sup>2</sup>·day·bar). Rapid curing at low-temperature processing along with barrier properties makes PHPS an ideal encapsulating material for organic solar cell devices and a variety of similar applications.
format	article
author	Iftikhar Ahmed Channa Aqeel Ahmed Shah Muhammad Rizwan Muhammad Atif Makhdoom Ali Dad Chandio Muhammad Ali Shar Asif Mahmood
author_facet	Iftikhar Ahmed Channa Aqeel Ahmed Shah Muhammad Rizwan Muhammad Atif Makhdoom Ali Dad Chandio Muhammad Ali Shar Asif Mahmood
author_sort	Iftikhar Ahmed Channa
title	Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier
title_short	Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier
title_full	Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier
title_fullStr	Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier
title_full_unstemmed	Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier
title_sort	process parameter optimization of a polymer derived ceramic coatings for producing ultra-high gas barrier
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9edd7e7ae9674a91a0411afb885cb4b8
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Process Parameter Optimization of a Polymer Derived Ceramic Coatings for Producing Ultra-High Gas Barrier

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