Cargando…

Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films

Delafossite materials are considered to be a promising range of transparent conductive oxides for optoelectronic applications. The complications that have held back their implementation in practical devices lie in the complex growth methods that are required and in the formation of undesirable secon...

Descripción completa

Detalles Bibliográficos
Autores principales: Shaili, Hamza, Salmani, Elmehdi, Beraich, Mustapha, Elhat, Abderrahim, Rouchdi, Mustapha, Taibi, Mhamed, Ez-Zahraouy, Hamid, Hassanain, Najem, Mzerd, Ahmed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9039415/
https://www.ncbi.nlm.nih.gov/pubmed/35478885
http://dx.doi.org/10.1039/d1ra03734j
_version_ 1784694123842764800
author Shaili, Hamza
Salmani, Elmehdi
Beraich, Mustapha
Elhat, Abderrahim
Rouchdi, Mustapha
Taibi, Mhamed
Ez-Zahraouy, Hamid
Hassanain, Najem
Mzerd, Ahmed
author_facet Shaili, Hamza
Salmani, Elmehdi
Beraich, Mustapha
Elhat, Abderrahim
Rouchdi, Mustapha
Taibi, Mhamed
Ez-Zahraouy, Hamid
Hassanain, Najem
Mzerd, Ahmed
author_sort Shaili, Hamza
collection PubMed
description Delafossite materials are considered to be a promising range of transparent conductive oxides for optoelectronic applications. The complications that have held back their implementation in practical devices lie in the complex growth methods that are required and in the formation of undesirable secondary phases. Herein, a fast, simple, and low-cost deposition method allowing the deposition of high-quality 2H-CuFeO(2) nanostructured thin films is employed. The effect of Sr doping on the properties of spray-coated CuFeO(2) thin film annealed at 850 °C is reported. X-ray diffraction (XRD) analysis revealed the delafossite structures of all the samples corresponding to the 2H-CuFeO(2) phase. The lattice spacing decreased with increasing substitution of Sr at the Cu site. Raman analysis further authenticated the structural results collected via XRD analysis. Surface scanning using field-emission scanning electron microscopy revealed the formation of nanostructured CuFeO(2) thin film possessing high crystalline quality, with the nanocrystal size increasing as the dopant content was increased. Energy-dispersive X-ray analysis allowed the quantification of the elements content via determining the ratios of the main elements as well as the dopant content in each sample. The optical properties of the samples showed strong light absorption in the visible region with a decrease in the band gap values with Sr insertion. First-principles calculations using density functional theory (DFT) were conducted to strengthen the experimental findings regarding the nature of the bonds in the hexagonal lattice of the CuFeO(2) compound and the effect of Sr doping on its characteristics. The electrical properties measured at room temperature revealed p-type conductivity with tunable resistivity, while the samples displayed increased electron mobility as a function of the dopant content. Consequently, our work introduced an efficient and cost-effective synthesis route for the preparation of high-quality nanostructured 2H-CuFeO(2) thin films, paving the way to facilitate further device applications.
format Online
Article
Text
id pubmed-9039415
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-90394152022-04-26 Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films Shaili, Hamza Salmani, Elmehdi Beraich, Mustapha Elhat, Abderrahim Rouchdi, Mustapha Taibi, Mhamed Ez-Zahraouy, Hamid Hassanain, Najem Mzerd, Ahmed RSC Adv Chemistry Delafossite materials are considered to be a promising range of transparent conductive oxides for optoelectronic applications. The complications that have held back their implementation in practical devices lie in the complex growth methods that are required and in the formation of undesirable secondary phases. Herein, a fast, simple, and low-cost deposition method allowing the deposition of high-quality 2H-CuFeO(2) nanostructured thin films is employed. The effect of Sr doping on the properties of spray-coated CuFeO(2) thin film annealed at 850 °C is reported. X-ray diffraction (XRD) analysis revealed the delafossite structures of all the samples corresponding to the 2H-CuFeO(2) phase. The lattice spacing decreased with increasing substitution of Sr at the Cu site. Raman analysis further authenticated the structural results collected via XRD analysis. Surface scanning using field-emission scanning electron microscopy revealed the formation of nanostructured CuFeO(2) thin film possessing high crystalline quality, with the nanocrystal size increasing as the dopant content was increased. Energy-dispersive X-ray analysis allowed the quantification of the elements content via determining the ratios of the main elements as well as the dopant content in each sample. The optical properties of the samples showed strong light absorption in the visible region with a decrease in the band gap values with Sr insertion. First-principles calculations using density functional theory (DFT) were conducted to strengthen the experimental findings regarding the nature of the bonds in the hexagonal lattice of the CuFeO(2) compound and the effect of Sr doping on its characteristics. The electrical properties measured at room temperature revealed p-type conductivity with tunable resistivity, while the samples displayed increased electron mobility as a function of the dopant content. Consequently, our work introduced an efficient and cost-effective synthesis route for the preparation of high-quality nanostructured 2H-CuFeO(2) thin films, paving the way to facilitate further device applications. The Royal Society of Chemistry 2021-07-26 /pmc/articles/PMC9039415/ /pubmed/35478885 http://dx.doi.org/10.1039/d1ra03734j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Shaili, Hamza
Salmani, Elmehdi
Beraich, Mustapha
Elhat, Abderrahim
Rouchdi, Mustapha
Taibi, Mhamed
Ez-Zahraouy, Hamid
Hassanain, Najem
Mzerd, Ahmed
Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films
title Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films
title_full Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films
title_fullStr Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films
title_full_unstemmed Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films
title_short Revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2H-CuFeO(2) delafossite thin films
title_sort revealing the impact of strontium doping on the optical, electronic and electrical properties of nanostructured 2h-cufeo(2) delafossite thin films
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9039415/
https://www.ncbi.nlm.nih.gov/pubmed/35478885
http://dx.doi.org/10.1039/d1ra03734j
work_keys_str_mv AT shailihamza revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT salmanielmehdi revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT beraichmustapha revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT elhatabderrahim revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT rouchdimustapha revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT taibimhamed revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT ezzahraouyhamid revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT hassanainnajem revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms
AT mzerdahmed revealingtheimpactofstrontiumdopingontheopticalelectronicandelectricalpropertiesofnanostructured2hcufeo2delafossitethinfilms