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arXiv · 2202.10342

Electrically controlled heat transport in multilayer graphene

Pietro Steiner·Saqeeb Adnan·Muhammed Said Ergoktas·Julien Barrier·Xiaoxiao Yu·Vicente Orts·Gokhan Bakan·Jonathan Aze·Yury Malevich·Kaiyuan Wang·Pietro Cataldi·Mark Bisset·Sinan Balci·Sefik Suzer·Marat Khafizov·Coskun Kocabas
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Abstract

The ability to control heat transport with electrical signals has been an outstanding challenge due to the lack of efficient electrothermal materials. Previous attempts have mainly concentrated on phase-change and layered materials and encountered various problems such as low thermal conductivities and modest on/off ratios. Here, we demonstrate a graphene-based electrothermal switch enabling electrically tuneable heat flow. The device uses reversible electro-intercalation of ions to modulate the in-plane thermal conductivity of graphene film by over thirteen-fold via electrically tuneable phonon scattering. We anticipate that our results could provide a realistic pathway for adaptive thermal transport enabling a new class of electrically driven thermal devices which would find a broad spectrum of applications in aerospace and microelectronics.

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Pietro Steiner, Saqeeb Adnan, Muhammed Said Ergoktas, Julien Barrier, Xiaoxiao Yu, Vicente Orts, Gokhan Bakan, Jonathan Aze, Yury Malevich, Kaiyuan Wang, Pietro Cataldi, Mark Bisset, Sinan Balci, Sefik Suzer, Marat Khafizov, Coskun Kocabas. 2022-02-21. Electrically controlled heat transport in multilayer graphene. https://arxiv.org/abs/2202.10342

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