Work

Thermal Performance Enhancement of Light Emitting Diode Device with Multilayer-Graphene Transferred to the Substrate Surface

Year: 2017

Type: article

Abstract: The heat centralization of high power light emitting diode becomes a challengeable issue by reason of the strong relationship between device reliability and operating temperature. The purpose of this work is to study the thermal behavior of light emitting diode device with graphene film transferred to the substrate surface. The experiment results show that junction temperature of the device with graphene film transferred to the alumina ceramic substrate surface is about 2.2°C lower. And the thermal resistance is low by 3.11 K/W compared to that of normal device. It is validated that graphene film can improve the thermal conductivity ability of the alumina ceramic substrate. Accordingly, the results are helpful in enhancing the performance and reliability of high power light emitting diode.

Source: ECS Journal of Solid State Science and Technology

DOI: 10.1149/2.0241701jss

Authors: Luqiao Yin, Tingting Nan, Piaopiao He, Zhangfu Chen, Lianqiao Yang, Jianhua Zhang

Institution: Shanghai University

Language: English

Topic: Thermal properties of materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funder: National Key Research and Development Program of China

Award: G6295951982