Inkjet Printed Large-Area Flexible Few-Layer Graphene Thermoelectrics
| Autor: | Ilkka Tittonen, Richard C. T. Howe, Henri Jussila, Tawfique Hasan, Mikko Ruoho, Leonard W. T. Ng, Tom Albrow-Owen, Zhipei Sun, Guohua Hu, Shouhu Liu, Taneli Juntunen |
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| Přispěvatelé: | Tittonen, I [0000-0002-2985-9789], Apollo - University of Cambridge Repository, Department of Electronics and Nanoengineering, University of Cambridge, Aalto-yliopisto, Aalto University |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
ta221 Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy law.invention Biomaterials large-area thermoelectrics law Thermal Thermoelectric effect Electrochemistry Thin film ta216 inkjet printing Nanocomposite Inkwell Nanoporous Graphene graphene 021001 nanoscience & nanotechnology Condensed Matter Physics Thermoelectric materials 0104 chemical sciences Electronic Optical and Magnetic Materials 0210 nano-technology |
| DOI: | 10.17863/cam.24175 |
| Popis: | openaire: EC/H2020/645241/EU//TransFlexTeg | openaire: EC/FP7/631610/EU//GrabFast Graphene-based organic nanocomposites have ascended as promising candidates for thermoelectric energy conversion. In order to adopt existing scalable printing methods for developing thermostable graphene-based thermoelectric devices, optimization of both the material ink and the thermoelectric properties of the resulting films are required. Here, inkjet-printed large-area flexible graphene thin films with outstanding thermoelectric properties are reported. The thermal and electronic transport properties of the films reveal the so-called phonon-glass electron-crystal character (i.e., electrical transport behavior akin to that of few-layer graphene flakes with quenched thermal transport arising from the disordered nanoporous structure). As a result, the all-graphene films show a room-temperature thermoelectric power factor of 18.7 µW m−1 K−2, representing over a threefold improvement to previous solution-processed all-graphene structures. The demonstration of inkjet-printed thermoelectric devices underscores the potential for future flexible, scalable, and low-cost thermoelectric applications, such as harvesting energy from body heat in wearable applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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