Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2
Abstract Two-Dimensional transition metal dichalcogenides have been the subject of extensive attention thanks to their unique properties and atomically thin structure. Because of its unprecedented room-temperature magnetic properties, iron-doped MoS2 (Fe:MoS2) is considered the next-generation quant...
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| Format: | Article |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-84524-8 |
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| author | Elham Easy Mengqi Fang Mingxing Li Eui-Hyeok Yang Xian Zhang |
| author_facet | Elham Easy Mengqi Fang Mingxing Li Eui-Hyeok Yang Xian Zhang |
| author_sort | Elham Easy |
| collection | DOAJ |
| description | Abstract Two-Dimensional transition metal dichalcogenides have been the subject of extensive attention thanks to their unique properties and atomically thin structure. Because of its unprecedented room-temperature magnetic properties, iron-doped MoS2 (Fe:MoS2) is considered the next-generation quantum and magnetic material. It is essential to understand Fe:MoS2’s thermal behavior since temperature and thermal load/activation are crucial for their magnetic properties and the current nano and quantum devices have been severely limited by thermal management. In this work, Fe:MoS2 is synthesized by doping Fe atoms into MoS2 using the chemical vapor deposition synthesis and a refined version of opto-thermal Raman technique is used to study the thermal transport properties of Fe:MoS2 in the forms of single (1L), bilayer (2L), and tri-layer (3L). In the Opto-thermal Raman technique, a laser is focused on the center of a thin film and used to measure the peak position of a Raman-active mode. The lateral thermal conductivity of 1-3L of Fe:MoS2 and the interfacial thermal conductance between Fe:MoS2 and the substrate were obtained by analyzing the temperature-dependent and power-dependent Raman measurement, laser power absorption coefficient, and laser spot sizes. At the room temperature, the lateral thermal conductivity of 1-3L Fe:MoS2 were discovered as 24 ± 11, 18 ± 9, and 16 ± 8 W/m·K, respectively which presents a decreasing trend from 1 to 3L and is about 40% lower than that of MoS2. The interfacial thermal conductance of between Fe:MoS2 and the substrate were discovered to be 0.3 ± 0.2, 1.1 ± 0.7, and 3.0 ± 2.3 MW/m2⋅K for 1L to 3L respectively. We also characterized Fe:MoS2’s thermal transport at high temperature, and calculated Fe:MoS2’s thermal transport by density theory function. These findings will shed light on the thermal management and thermoelectric designs for Fe:MoS2 based nano and quantum electronic devices. |
| format | Article |
| id | doaj-art-3f45d14f98ac460cbae04689df4f108d |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-3f45d14f98ac460cbae04689df4f108d2025-01-05T12:16:48ZengNature PortfolioScientific Reports2045-23222025-01-011511910.1038/s41598-024-84524-8Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2Elham Easy0Mengqi Fang1Mingxing Li2Eui-Hyeok Yang3Xian Zhang4Department of Mechanical Engineering, Stevens Institute of TechnologyDepartment of Mechanical Engineering, Stevens Institute of TechnologyCenter for Functional Nanomaterials, Brookhaven National LaboratoryDepartment of Mechanical Engineering, Stevens Institute of TechnologyDepartment of Mechanical Engineering, Stevens Institute of TechnologyAbstract Two-Dimensional transition metal dichalcogenides have been the subject of extensive attention thanks to their unique properties and atomically thin structure. Because of its unprecedented room-temperature magnetic properties, iron-doped MoS2 (Fe:MoS2) is considered the next-generation quantum and magnetic material. It is essential to understand Fe:MoS2’s thermal behavior since temperature and thermal load/activation are crucial for their magnetic properties and the current nano and quantum devices have been severely limited by thermal management. In this work, Fe:MoS2 is synthesized by doping Fe atoms into MoS2 using the chemical vapor deposition synthesis and a refined version of opto-thermal Raman technique is used to study the thermal transport properties of Fe:MoS2 in the forms of single (1L), bilayer (2L), and tri-layer (3L). In the Opto-thermal Raman technique, a laser is focused on the center of a thin film and used to measure the peak position of a Raman-active mode. The lateral thermal conductivity of 1-3L of Fe:MoS2 and the interfacial thermal conductance between Fe:MoS2 and the substrate were obtained by analyzing the temperature-dependent and power-dependent Raman measurement, laser power absorption coefficient, and laser spot sizes. At the room temperature, the lateral thermal conductivity of 1-3L Fe:MoS2 were discovered as 24 ± 11, 18 ± 9, and 16 ± 8 W/m·K, respectively which presents a decreasing trend from 1 to 3L and is about 40% lower than that of MoS2. The interfacial thermal conductance of between Fe:MoS2 and the substrate were discovered to be 0.3 ± 0.2, 1.1 ± 0.7, and 3.0 ± 2.3 MW/m2⋅K for 1L to 3L respectively. We also characterized Fe:MoS2’s thermal transport at high temperature, and calculated Fe:MoS2’s thermal transport by density theory function. These findings will shed light on the thermal management and thermoelectric designs for Fe:MoS2 based nano and quantum electronic devices.https://doi.org/10.1038/s41598-024-84524-8 |
| spellingShingle | Elham Easy Mengqi Fang Mingxing Li Eui-Hyeok Yang Xian Zhang Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2 Scientific Reports |
| title | Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2 |
| title_full | Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2 |
| title_fullStr | Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2 |
| title_full_unstemmed | Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2 |
| title_short | Layer dependent thermal transport properties of one- to three-layer magnetic Fe:MoS2 |
| title_sort | layer dependent thermal transport properties of one to three layer magnetic fe mos2 |
| url | https://doi.org/10.1038/s41598-024-84524-8 |
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