کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5489007 1399593 2016 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graphene nanosheet/silicone composite with enhanced thermal conductivity and its application in heat dissipation of high-power light-emitting diodes
ترجمه فارسی عنوان
نانومواد گرافن / سیلیکون کامپوزیت با هدایت حرارتی افزایش یافته و کاربرد آن در تخلیه گرمائی از دیودهای نوری با قدرت بالا
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
Heat dissipation from light-emitting diodes (LEDs) has become a serious problem because of the LEDs' high luminosity and power. This problem could be solved by improving the dissipation efficiency of each LED system component. A microwave-reduced graphene nanosheet/silicone (GN/silicone) composite with a high thermal conductivity and stability was prepared by mechanical blending. The thermal conductivity of the composite reaches 2.7 W/(m K) with only 1.5 wt% loading, and is 12 times higher than the pure silicone matrix. When used as a thermal interface material between high-power LED chip module substrates and heat sinks, the thermal conductive GN/silicone composite could decrease the temperature difference between the substrate and shell. It could also improve the system heat transfer efficiency. The temperature gap between the heat slug and the heat sink was less than 2 °C with a 1.5 wt% loading of GNs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 16, Issue 12, December 2016, Pages 1695-1702
نویسندگان
, , , , , , , ,