دورية أكاديمية
Enhanced Thermoelectric Performance of Mg–Sn Thin Films: Role of Mg 9 Sn 5 Phase and One-Dimensional Electronic Structure
| العنوان: | Enhanced Thermoelectric Performance of Mg–Sn Thin Films: Role of Mg 9 Sn 5 Phase and One-Dimensional Electronic Structure |
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| المؤلفون: | Cheng-Lung Chen, Sheng-Chi Chen, Ching-Lin Chou, Te-Hsien Wang, Min-Chen Chuang, Bo-Chen Tang, Yang-Yuan Chen |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Biochemistry, Medicine, Neuroscience, Pharmacology, Space Science, Chemical Sciences not elsewhere classified, theoretical calculations indicated, original seebeck coefficient, identify physical factors, garnered significant attention, experimental results revealed, electron beam coevaporation, effective elemental composition, novel approach utilizing, high power factor, 5 , 2 , phase significantly increased, phase displayed 1d, phase structure exhibited, enhanced thermoelectric performance, 9 , phase structure, promising approach, outstanding thermoelectric, fabricate high, work introduces, tin content, thin films |
| الوصف: | Mg–Sn alloy thin films have garnered significant attention for their outstanding thermoelectric (TE) properties and cost-effective elemental composition, making them potential candidates for wearable energy harvesting devices. While previous studies have explored the properties of these thin films, limited research has been conducted to identify physical factors that can further enhance their performance. In this study, we present a novel approach utilizing a convenient electron beam coevaporation technique to fabricate Mg–Sn alloy thin films. Experimental results revealed that controlling the tin content in the Mg–Sn thin films at 38.9% led to the formation of a mixed-phase structure, comprising Mg 2 Sn and Mg 9 Sn 5 . This dual-phase structure exhibited a notable advantage in enhancing the TE performance. The presence of the Mg 9 Sn 5 phase significantly increased the carrier concentration, while maintaining the original Seebeck coefficient and mobility, thereby improving the conductivity of Mg 2 Sn. Theoretical calculations indicated that the Mg 9 Sn 5 phase displayed 1D-like characteristics, leading to a highly effective valley degeneracy and consequently a high power factor. Overall, this work introduces a promising approach to fabricate high-performance Mg–Sn alloy thin films through electron beam coevaporation, opening up possibilities for their application in wearable energy harvesting devices. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://figshare.com/articles/journal_contribution/Enhanced_Thermoelectric_Performance_of_Mg_Sn_Thin_Films_Role_of_Mg_sub_9_sub_Sn_sub_5_sub_Phase_and_One-Dimensional_Electronic_Structure/24969843Test |
| DOI: | 10.1021/acsami.3c17226.s001 |
| الإتاحة: | https://doi.org/10.1021/acsami.3c17226.s001Test https://figshare.com/articles/journal_contribution/Enhanced_Thermoelectric_Performance_of_Mg_Sn_Thin_Films_Role_of_Mg_sub_9_sub_Sn_sub_5_sub_Phase_and_One-Dimensional_Electronic_Structure/24969843Test |
| حقوق: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.5ABBAB10 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acsami.3c17226.s001 |
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