Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture
A stacked thermoelectric generator on a flexible polymer sheet is investigated that can utilize a low-cost high throughput roll-to-roll process, employing a metal–insulator–semiconductor structure of <100 nm thick Cu and bismuth telluride films with a ≈1 µm thick acrylate insulating coating. Ther...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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Wiley
2021
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| _version_ | 1826288323731128320 |
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| author | Tao, X Hao, B Assender, H |
| author_facet | Tao, X Hao, B Assender, H |
| author_sort | Tao, X |
| collection | OXFORD |
| description | A stacked thermoelectric generator on a flexible polymer sheet is investigated that can utilize a low-cost high throughput roll-to-roll process, employing a metal–insulator–semiconductor structure of <100 nm thick Cu and bismuth telluride films with a ≈1 µm thick acrylate insulating coating. Thermoelectric strips can be stacked and connected in the out-of-plane direction, which significantly decreases the size required in the substrate plane and also gives rise to the opportunity for greatly extending power output by stacking thousands of layers. A smooth surface of stacked layers is confirmed due to the nature of the acrylate layer. Room-temperature sputtering can produce good quality/crystalline films, indicated by X-ray diffraction and transmission electron microscope. Both experimental and simulation results observe a small temperature gradient across the stack from the bottom heat source to the top free surface. A stacked thermoelectric generator shows comparable performance to an in-plane device, and most notably, the stacked architecture allows a higher power output without increasing the dimension of the device in the substrate plane, while the thickness is increased within only a µm range. Cyclic buckling fatigue tests suggest that the performance of stacked functional strips can be protected under deformation within the acrylate matrix.
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| first_indexed | 2024-03-07T02:11:58Z |
| format | Journal article |
| id | oxford-uuid:a0f66082-7d4a-483f-9f5d-938dd4dbdb9b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:11:58Z |
| publishDate | 2021 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:a0f66082-7d4a-483f-9f5d-938dd4dbdb9b2022-03-27T02:09:36ZNovel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architectureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a0f66082-7d4a-483f-9f5d-938dd4dbdb9bEnglishSymplectic ElementsWiley2021Tao, XHao, BAssender, HA stacked thermoelectric generator on a flexible polymer sheet is investigated that can utilize a low-cost high throughput roll-to-roll process, employing a metal–insulator–semiconductor structure of <100 nm thick Cu and bismuth telluride films with a ≈1 µm thick acrylate insulating coating. Thermoelectric strips can be stacked and connected in the out-of-plane direction, which significantly decreases the size required in the substrate plane and also gives rise to the opportunity for greatly extending power output by stacking thousands of layers. A smooth surface of stacked layers is confirmed due to the nature of the acrylate layer. Room-temperature sputtering can produce good quality/crystalline films, indicated by X-ray diffraction and transmission electron microscope. Both experimental and simulation results observe a small temperature gradient across the stack from the bottom heat source to the top free surface. A stacked thermoelectric generator shows comparable performance to an in-plane device, and most notably, the stacked architecture allows a higher power output without increasing the dimension of the device in the substrate plane, while the thickness is increased within only a µm range. Cyclic buckling fatigue tests suggest that the performance of stacked functional strips can be protected under deformation within the acrylate matrix. |
| spellingShingle | Tao, X Hao, B Assender, H Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture |
| title | Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture |
| title_full | Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture |
| title_fullStr | Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture |
| title_full_unstemmed | Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture |
| title_short | Novel stacking design of a flexible thin-film thermoelectric generator with a metal-insulator-semiconductor architecture |
| title_sort | novel stacking design of a flexible thin film thermoelectric generator with a metal insulator semiconductor architecture |
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