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Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications
The co-precipitation approach was utilized to experimentally synthesize ZnO, Zn(0.96)Gd(0.04)O and Zn(0.96−x)Gd(0.04)Co(x)O (Co = 0, 0.01, 0.03, 0.04) diluted magnetic semiconductor nanotubes. The influence of gadolinium and cobalt doping on the microstructure, morphology, and optical characteristic...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9761297/ https://www.ncbi.nlm.nih.gov/pubmed/36545077 http://dx.doi.org/10.1039/d2ra06637h |
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author | Khan, Rajwali Shigidi, Ihab Al Otaibi, Sattam Althubeiti, Khaled Abdullaev, Sherzod Shukhratovich Rahman, Nasir Mohammad sohail, Khan, Alamzeb Iqbal, Shahid Del Rosso, Tommaso Zaman, Quaid Khan, Aurangzeb |
author_facet | Khan, Rajwali Shigidi, Ihab Al Otaibi, Sattam Althubeiti, Khaled Abdullaev, Sherzod Shukhratovich Rahman, Nasir Mohammad sohail, Khan, Alamzeb Iqbal, Shahid Del Rosso, Tommaso Zaman, Quaid Khan, Aurangzeb |
author_sort | Khan, Rajwali |
collection | PubMed |
description | The co-precipitation approach was utilized to experimentally synthesize ZnO, Zn(0.96)Gd(0.04)O and Zn(0.96−x)Gd(0.04)Co(x)O (Co = 0, 0.01, 0.03, 0.04) diluted magnetic semiconductor nanotubes. The influence of gadolinium and cobalt doping on the microstructure, morphology, and optical characteristics of ZnO was investigated, and the Gd doping and Co co-doping of the host ZnO was verified by XRD and EDX. The structural investigation revealed that the addition of gadolinium and cobalt to ZnO reduced crystallinity while maintaining the preferred orientation. The SEM study uncovered that the gadolinium and cobalt dopants did not affect the morphology of the produced nanotubes, which is further confirmed through TEM. In the UV-vis spectra, no defect-related absorption peaks were found. By raising the co-doping content, the crystalline phase of the doped samples was enhanced. It was discovered that the dielectric response and the a.c. electrical conductivity display a significant dependent relationship. With the decreasing frequency and increasing Co co-dopant concentration, the ε(r) and ε′′ values decreased. It was also discovered that the ε(r), ε′′, and a.c. electrical conductivity increased when doping was present. Above room temperature, co-doped ZnO nanotubes exhibited ferromagnetic properties. The ferromagnetic behaviour increased as Gd (0.03) doping increased. Increasing the Co content decreased the ferromagnetic behaviour. It was observed that Zn(0.96−x)Gd(0.04)Co(x)O (x = 0.03) nanotubes exhibit superior electrical conductivity, magnetic and dielectric characteristics compared to pure ZnO. This high ferromagnetism is typically a result of a magnetic semiconductor that has been diluted. In addition, these nanoparticles are utilized to design spintronic-based applications in the form of thin-films. |
format | Online Article Text |
id | pubmed-9761297 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-97612972022-12-20 Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications Khan, Rajwali Shigidi, Ihab Al Otaibi, Sattam Althubeiti, Khaled Abdullaev, Sherzod Shukhratovich Rahman, Nasir Mohammad sohail, Khan, Alamzeb Iqbal, Shahid Del Rosso, Tommaso Zaman, Quaid Khan, Aurangzeb RSC Adv Chemistry The co-precipitation approach was utilized to experimentally synthesize ZnO, Zn(0.96)Gd(0.04)O and Zn(0.96−x)Gd(0.04)Co(x)O (Co = 0, 0.01, 0.03, 0.04) diluted magnetic semiconductor nanotubes. The influence of gadolinium and cobalt doping on the microstructure, morphology, and optical characteristics of ZnO was investigated, and the Gd doping and Co co-doping of the host ZnO was verified by XRD and EDX. The structural investigation revealed that the addition of gadolinium and cobalt to ZnO reduced crystallinity while maintaining the preferred orientation. The SEM study uncovered that the gadolinium and cobalt dopants did not affect the morphology of the produced nanotubes, which is further confirmed through TEM. In the UV-vis spectra, no defect-related absorption peaks were found. By raising the co-doping content, the crystalline phase of the doped samples was enhanced. It was discovered that the dielectric response and the a.c. electrical conductivity display a significant dependent relationship. With the decreasing frequency and increasing Co co-dopant concentration, the ε(r) and ε′′ values decreased. It was also discovered that the ε(r), ε′′, and a.c. electrical conductivity increased when doping was present. Above room temperature, co-doped ZnO nanotubes exhibited ferromagnetic properties. The ferromagnetic behaviour increased as Gd (0.03) doping increased. Increasing the Co content decreased the ferromagnetic behaviour. It was observed that Zn(0.96−x)Gd(0.04)Co(x)O (x = 0.03) nanotubes exhibit superior electrical conductivity, magnetic and dielectric characteristics compared to pure ZnO. This high ferromagnetism is typically a result of a magnetic semiconductor that has been diluted. In addition, these nanoparticles are utilized to design spintronic-based applications in the form of thin-films. The Royal Society of Chemistry 2022-12-19 /pmc/articles/PMC9761297/ /pubmed/36545077 http://dx.doi.org/10.1039/d2ra06637h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Khan, Rajwali Shigidi, Ihab Al Otaibi, Sattam Althubeiti, Khaled Abdullaev, Sherzod Shukhratovich Rahman, Nasir Mohammad sohail, Khan, Alamzeb Iqbal, Shahid Del Rosso, Tommaso Zaman, Quaid Khan, Aurangzeb Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications |
title | Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications |
title_full | Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications |
title_fullStr | Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications |
title_full_unstemmed | Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications |
title_short | Room temperature dilute magnetic semiconductor response in (Gd, Co) co-doped ZnO for efficient spintronics applications |
title_sort | room temperature dilute magnetic semiconductor response in (gd, co) co-doped zno for efficient spintronics applications |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9761297/ https://www.ncbi.nlm.nih.gov/pubmed/36545077 http://dx.doi.org/10.1039/d2ra06637h |
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