Projects per year
Abstract
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.
Original language | English |
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Article number | 1800480 |
Journal | Advanced Functional Materials |
Volume | 28 |
Issue number | 22 |
DOIs | |
Publication status | Published - 30 May 2018 |
MoE publication type | A1 Journal article-refereed |
Keywords
- graphene
- inkjet printing
- large-area thermoelectrics
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Dive into the research topics of 'Inkjet Printed Large-Area Flexible Few-Layer Graphene Thermoelectrics'. Together they form a unique fingerprint.Projects
- 6 Finished
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LAYERED 2D MATERIALS BASED THZ SPECTROSCOPY AND IMAGING
Sun, Z., Generalov, A., Hulkko, E., Mohsen, A., Uddin, M. & Das, S.
01/01/2018 → 31/12/2021
Project: Academy of Finland: Other research funding
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Graphene Based Ultrafast Lasers
Sun, Z., Generalov, A., Autere, A., Du, M., Xue, H., Yang, H. & Das, S.
01/09/2017 → 31/08/2019
Project: Academy of Finland: Other research funding
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High-performance ultrafast mid-infrared fiber lasers for health and wellbeing applications
Sun, Z., Jussila, H., Dai, Y., Salomaa, V., Wang, Y., Turunen, M. & Yang, H.
01/10/2016 → 30/09/2018
Project: Academy of Finland: Other research funding