Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 정용재 | - |
dc.date.accessioned | 2022-10-17T06:38:12Z | - |
dc.date.available | 2022-10-17T06:38:12Z | - |
dc.date.issued | 2021-01 | - |
dc.identifier.citation | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v. 41, no. 1, page. 611-616 | en_US |
dc.identifier.issn | 0955-2219; 1873-619X | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0955221920307093?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175484 | - |
dc.description.abstract | Ga2O3, which is emerging as semiconductor material due to the ultra-wide bandgap, has tunability in bandgap and lattice constant by alloying Al. However, successful control of alloying phase is still challenging due to its hetemstructural nature and rich polymorphs. Here, we identified the thermodynamic phase diagram of heterostructural (AlxGa1-x)(2)O-3 alloy. Using density-functional theory (DFT) calculations and regular solution model, we calculated the Gibbs-free energy of mixing of hetemstructural polymorphs. Based on the calculation, we show the phase diagram of (AlxGa1-x)(2)O-3 alloy system with a markedly increased metastability than the isostructural alloy, which can make a vast phase space for homogeneous single-phase alloys. We also investigated the correlation between the bandgap and lattice constant within these systems using hybrid DFT calculations, which can guide the device design of Ga2O3 power electronics. | en_US |
dc.description.sponsorship | We gratefully acknowledge partial support from the National Research Foundation of Korea (NRF-2019R1A2B5B01070215 and 2019R1F1A1058554) and Ministry of Trade, Industry & Energy (20004367). The computations were carried out using resources from Korea Supercomputing Center (KSC-2020-CRE-0023). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCI LTD | en_US |
dc.subject | Ultra-wide bandgap; Solid solution; Ga2O3; Heterostructural alloy; First-principles calculation | en_US |
dc.title | Heterostructural phase diagram of Ga2O3 based solid solution with Al2O3 | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 41 | - |
dc.identifier.doi | 10.1016/j.jeurceramsoc.2020.08.067 | en_US |
dc.relation.page | 611-616 | - |
dc.relation.journal | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | - |
dc.contributor.googleauthor | Kim, Hyeon Woo | - |
dc.contributor.googleauthor | Ko, Hyunseok | - |
dc.contributor.googleauthor | Chung, Yong-Chae | - |
dc.contributor.googleauthor | Cho, Sung Beom | - |
dc.relation.code | 2021001650 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | SCHOOL OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | yongchae | - |
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