Efficient heat dissipation by ion-mediation assembled reduced graphene oxide
A clear solution for efficient thermal management of light emitting diodes (LEDs) 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 exist...
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Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2018, Vol.6 (10), p.2515-2521 |
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Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | A clear solution for efficient thermal management of light emitting diodes (LEDs) 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 materials, 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 the required energy and an increase in device lifetime. With the features of a simple, scalable process and excellent heat dissipation performance, the IMA-rGO introduced here could bring LEDs closer to our daily lives. |
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ISSN: | 2050-7526 2050-7534 |
DOI: | 10.1039/C7TC05498J |