Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach

This research endeavor aimed to synthesize the lead (II) diphenyldiselenophosphinate complex and its use to obtain lead selenide nanostructured depositions and further the impedance spectroscopic analysis of these obtained PbSe nanostructures, to determine their roles in the electronics industry. Th...

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Autores principales:	Sadia Iram, Azhar Mahmood, Muhammad Fahad Ehsan, Asad Mumtaz, Manzar Sohail, Effat Sitara, Shehla Mushtaq, Mohammad Azad Malik, Syeda Arooj Fatima, Rubina Shaheen, Nasir Mahmood Ahmad, Sajid Nawaz Malik
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	lead chalcogenide AACVD nanostructured deposition impedance analysis Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/b244837ff0d44e4a8abcaee8dd51a629
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spelling	oai:doaj.org-article:b244837ff0d44e4a8abcaee8dd51a6292021-11-25T18:30:00ZImpedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach10.3390/nano111128172079-4991https://doaj.org/article/b244837ff0d44e4a8abcaee8dd51a6292021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2817https://doaj.org/toc/2079-4991This research endeavor aimed to synthesize the lead (II) diphenyldiselenophosphinate complex and its use to obtain lead selenide nanostructured depositions and further the impedance spectroscopic analysis of these obtained PbSe nanostructures, to determine their roles in the electronics industry. The aerosol-assisted chemical vapor deposition technique was used to provide lead selenide deposition by decomposition of the complex at different temperatures using the glass substrates. The obtained films were revealed to be a pure cubic phase PbSe, as confirmed by X-ray diffraction analysis. SEM and TEM micrographs demonstrated three-dimensionally grown interlocked or aggregated nanocubes of the obtained PbSe. Characteristic dielectric measurements and the impedance spectroscopy analysis at room temperature were executed to evaluate PbSe properties over the frequency range of 100 Hz–5 MHz. The dielectric constant and dielectric loss gave similar trends, along with altering frequency, which was well explained by the Koops theory and Maxwell–Wagner theory. The effective short-range translational carrier hopping gave rise to an overdue remarkable increase in ac conductivity (σ<sub>ac</sub>) on the frequency increase. Fitting of a complex impedance plot was carried out with an equivalent circuit model (R<sub>g</sub> C<sub>g</sub>) (R<sub>gb</sub> Q<sub>gb</sub> C<sub>gb</sub>), which proved that grains, as well as grain boundaries, are responsible for the relaxation processes. The asymmetric depressed semicircle with the center lower to the impedance real axis provided a clear explanation of non-Debye dielectric behavior.Sadia IramAzhar MahmoodMuhammad Fahad EhsanAsad MumtazManzar SohailEffat SitaraShehla MushtaqMohammad Azad MalikSyeda Arooj FatimaRubina ShaheenNasir Mahmood AhmadSajid Nawaz MalikMDPI AGarticlelead chalcogenideAACVDnanostructured depositionimpedance analysisChemistryQD1-999ENNanomaterials, Vol 11, Iss 2817, p 2817 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	lead chalcogenide AACVD nanostructured deposition impedance analysis Chemistry QD1-999
spellingShingle	lead chalcogenide AACVD nanostructured deposition impedance analysis Chemistry QD1-999 Sadia Iram Azhar Mahmood Muhammad Fahad Ehsan Asad Mumtaz Manzar Sohail Effat Sitara Shehla Mushtaq Mohammad Azad Malik Syeda Arooj Fatima Rubina Shaheen Nasir Mahmood Ahmad Sajid Nawaz Malik Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach
description	This research endeavor aimed to synthesize the lead (II) diphenyldiselenophosphinate complex and its use to obtain lead selenide nanostructured depositions and further the impedance spectroscopic analysis of these obtained PbSe nanostructures, to determine their roles in the electronics industry. The aerosol-assisted chemical vapor deposition technique was used to provide lead selenide deposition by decomposition of the complex at different temperatures using the glass substrates. The obtained films were revealed to be a pure cubic phase PbSe, as confirmed by X-ray diffraction analysis. SEM and TEM micrographs demonstrated three-dimensionally grown interlocked or aggregated nanocubes of the obtained PbSe. Characteristic dielectric measurements and the impedance spectroscopy analysis at room temperature were executed to evaluate PbSe properties over the frequency range of 100 Hz–5 MHz. The dielectric constant and dielectric loss gave similar trends, along with altering frequency, which was well explained by the Koops theory and Maxwell–Wagner theory. The effective short-range translational carrier hopping gave rise to an overdue remarkable increase in ac conductivity (σ<sub>ac</sub>) on the frequency increase. Fitting of a complex impedance plot was carried out with an equivalent circuit model (R<sub>g</sub> C<sub>g</sub>) (R<sub>gb</sub> Q<sub>gb</sub> C<sub>gb</sub>), which proved that grains, as well as grain boundaries, are responsible for the relaxation processes. The asymmetric depressed semicircle with the center lower to the impedance real axis provided a clear explanation of non-Debye dielectric behavior.
format	article
author	Sadia Iram Azhar Mahmood Muhammad Fahad Ehsan Asad Mumtaz Manzar Sohail Effat Sitara Shehla Mushtaq Mohammad Azad Malik Syeda Arooj Fatima Rubina Shaheen Nasir Mahmood Ahmad Sajid Nawaz Malik
author_facet	Sadia Iram Azhar Mahmood Muhammad Fahad Ehsan Asad Mumtaz Manzar Sohail Effat Sitara Shehla Mushtaq Mohammad Azad Malik Syeda Arooj Fatima Rubina Shaheen Nasir Mahmood Ahmad Sajid Nawaz Malik
author_sort	Sadia Iram
title	Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach
title_short	Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach
title_full	Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach
title_fullStr	Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach
title_full_unstemmed	Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach
title_sort	impedance spectroscopy analysis of pbse nanostructures deposited by aerosol assisted chemical vapor deposition approach
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b244837ff0d44e4a8abcaee8dd51a629
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Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach

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