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Efficient heat dissipation by ion-mediation assembled reduced graphene oxide

Abstract

A clear solution for efficient thermal management of light emitting diode (LED) is elusive, which is critical for general purpose lighting. Here, a hierarchical porous structure of reduced graphene oxide through ion-mediation (IMA-rGO) is developed for efficient heat dissipation. Compared to existing copper material, the IMA-rGO yielded the highest cooling efficiency of 36.5% through the simple and easily scalable ion-mediation process. This highly efficient heat dissipater lowered the operating temperature of a high power commercial LED from 75 °C to 59 °C, leading to a reduction in required energy and an increase in device lifetime. With the features of simple, scalable process and excellent heat dissipation performance, the IMA-rGO introduced here would bring the LED closer to our daily lives.

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Publication details

The article was received on 30 Nov 2017, accepted on 02 Feb 2018 and first published on 02 Feb 2018


Article type: Paper
DOI: 10.1039/C7TC05498J
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Efficient heat dissipation by ion-mediation assembled reduced graphene oxide

    J. S. Lee, T. Kim, H. Lee and Y. H. Kim, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C7TC05498J

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