Enhanced dielectric properties of Be-doped magnesium oxide nanopowder
Owing to its applicability in refractory ceramic synthesis, nanoelectronics, optoelectronic and sensing devices, and superconducting products, magnesium oxide (MgO) is recognized to be an important ceramic material. However, it has a relatively low dielectric constant compared to other metal oxide s...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0130595 |
| _version_ | 1811172628635844608 |
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| author | Sang-hwa Lee Young Pyo Jeon Eun Jung Lee Young Jun Lee Tae Woong Cho Gyung Hyun Kim Eunseo Ko Ju Sang Park Young Il Moon Sang Yoon Park Young Joon Yoo |
| author_facet | Sang-hwa Lee Young Pyo Jeon Eun Jung Lee Young Jun Lee Tae Woong Cho Gyung Hyun Kim Eunseo Ko Ju Sang Park Young Il Moon Sang Yoon Park Young Joon Yoo |
| author_sort | Sang-hwa Lee |
| collection | DOAJ |
| description | Owing to its applicability in refractory ceramic synthesis, nanoelectronics, optoelectronic and sensing devices, and superconducting products, magnesium oxide (MgO) is recognized to be an important ceramic material. However, it has a relatively low dielectric constant compared to other metal oxide semiconductors, which restricts the range of its bandgap and limits its applicability. Therefore, in this study, we propose and verify a method to improve the dielectric constant of MgO. A sample of MgO powder doped with Be ions was prepared using the Pechini method. The crystal structure of the doped MgO powder was analyzed by x-ray diffraction. Through structural analysis, it was confirmed that a substitution amount of up to 5% of Be ions was possible without breaking the cubic structure. The bonding structure in the lattice of the sample was identified through x-ray photoelectron spectroscopy, and the change in the bonding structure according to the amount of substitution was identified. The dielectric properties of the samples were analyzed as a function of frequency at room temperature. The real and imaginary parts of the dielectric constant were studied at room temperature as a function of frequency and composition. It was confirmed that the dielectric constant increased as the Be ions were substituted. Our results show that improving the low dielectric properties of pure MgO can enable its application to wide bandgap and high voltage applications simultaneously. |
| first_indexed | 2024-04-10T17:33:21Z |
| format | Article |
| id | doaj.art-48b6e828f14a4f91a892572b85bfd4dc |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-10T17:33:21Z |
| publishDate | 2023-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-48b6e828f14a4f91a892572b85bfd4dc2023-02-03T16:42:06ZengAIP Publishing LLCAIP Advances2158-32262023-01-01131015007015007-610.1063/5.0130595Enhanced dielectric properties of Be-doped magnesium oxide nanopowderSang-hwa Lee0Young Pyo Jeon1Eun Jung Lee2Young Jun Lee3Tae Woong Cho4Gyung Hyun Kim5Eunseo Ko6Ju Sang Park7Young Il Moon8Sang Yoon Park9Young Joon Yoo10Advanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaDepartment of Electrical Engineering, Pohang University of Science and Technology, Pohang 37673, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaAdvanced Institute of Convergence Technology, Seoul National University, Gyeonggi-do 16229, KoreaOwing to its applicability in refractory ceramic synthesis, nanoelectronics, optoelectronic and sensing devices, and superconducting products, magnesium oxide (MgO) is recognized to be an important ceramic material. However, it has a relatively low dielectric constant compared to other metal oxide semiconductors, which restricts the range of its bandgap and limits its applicability. Therefore, in this study, we propose and verify a method to improve the dielectric constant of MgO. A sample of MgO powder doped with Be ions was prepared using the Pechini method. The crystal structure of the doped MgO powder was analyzed by x-ray diffraction. Through structural analysis, it was confirmed that a substitution amount of up to 5% of Be ions was possible without breaking the cubic structure. The bonding structure in the lattice of the sample was identified through x-ray photoelectron spectroscopy, and the change in the bonding structure according to the amount of substitution was identified. The dielectric properties of the samples were analyzed as a function of frequency at room temperature. The real and imaginary parts of the dielectric constant were studied at room temperature as a function of frequency and composition. It was confirmed that the dielectric constant increased as the Be ions were substituted. Our results show that improving the low dielectric properties of pure MgO can enable its application to wide bandgap and high voltage applications simultaneously.http://dx.doi.org/10.1063/5.0130595 |
| spellingShingle | Sang-hwa Lee Young Pyo Jeon Eun Jung Lee Young Jun Lee Tae Woong Cho Gyung Hyun Kim Eunseo Ko Ju Sang Park Young Il Moon Sang Yoon Park Young Joon Yoo Enhanced dielectric properties of Be-doped magnesium oxide nanopowder AIP Advances |
| title | Enhanced dielectric properties of Be-doped magnesium oxide nanopowder |
| title_full | Enhanced dielectric properties of Be-doped magnesium oxide nanopowder |
| title_fullStr | Enhanced dielectric properties of Be-doped magnesium oxide nanopowder |
| title_full_unstemmed | Enhanced dielectric properties of Be-doped magnesium oxide nanopowder |
| title_short | Enhanced dielectric properties of Be-doped magnesium oxide nanopowder |
| title_sort | enhanced dielectric properties of be doped magnesium oxide nanopowder |
| url | http://dx.doi.org/10.1063/5.0130595 |
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