Improvement of Interface Thermal Resistance for Surface-Mounted Ultraviolet Light-Emitting Diodes Using a Graphene Oxide Silicone Composite
Improvement of Interface Thermal Resistance for Surface-Mounted Ultraviolet Light-Emitting Diodes Using a Graphene Oxide Silicone Composite
复制标题
使用氧化石墨烯有机硅复合材料改善表面贴装紫外发光二极管的界面热阻
DOI：
10.1021/acsomega.7b00918
复制
发表时间：
2017-08
期刊：
影响因子：
4.1
通讯作者：
Changqing Chen
中科院分区：
文献类型：
--
作者：
Renli Liang;Jiangnan Dai;Lei Ye;Linlin Xu;Yang Peng;Shuai Wang;Jingwen Chen;Hanling Long;Changqing Chen
在这项研究中，基于有机硅复合材料与氧化石墨烯（GO）作为填料，提出了一种新的封装策略，以降低表面贴装紫外发光二极管（UV-LED）的界面热阻，并提供了一个潜在的有效途径，以提高设备的长期稳定性。4wt%GO基复合材料表现出优异的导热性能，将其嵌入UV-LED键合界面的气隙中后，界面热阻降低了34%，在1000 mA的工作电流下，结温降低了1.2 °C。同时，通过有限元分析，得到了键合界面处热应力的减小。此外，还发现采用该结构的紫外发光二极管的寿命有明显的提高。它被认为是一种简单而有效的方法，用于改善表面安装的UV-LED的性能。
In this study, based on silicone composites with graphene oxide (GO) as a filler, a novel packaging strategy was proposed to reduce the interface thermal resistance of surface-mounted ultraviolet light-emitting diodes (UV-LEDs) and provide a potentially effective way for enhancing the long-term stability of devices. The 4 wt % GO-based composite showed an excellent performance in the thermal conductivity, and the interface thermal resistance was reduced by 34% after embedding the 4 wt % GO-based composite into the air gaps of bonding interfaces in the UV-LEDs, leading to a reduction of junction temperature by 1.2 °C under the working current of 1000 mA. Meanwhile, a decrease of thermal stress in bonding interfaces was obtained based on the finite element analysis. What is more, it was found that the lifetime of UV-LEDs with the proposed structure could be obviously improved. It is believed to provide a simple and effective approach for improving the performance of surface-mounted UV-LEDs.
登录
查看更多内容
影响因子：
4.1
作者：
Huicong Dong;B. Wen;Yuwen Zhang;R. Melnik
通讯作者：
Huicong Dong;B. Wen;Yuwen Zhang;R. Melnik
影响因子：
6.7
作者：
P. Bagnoli;C. Casarosa;M. Ciampi;E. Dallago
通讯作者：
P. Bagnoli;C. Casarosa;M. Ciampi;E. Dallago
影响因子：
3
作者：
R. N. Kumar;Lim Yoke Keem;Ng Chee Mang;A. Abubakar
通讯作者：
R. N. Kumar;Lim Yoke Keem;Ng Chee Mang;A. Abubakar
一种改进的 Hummers 方法，用于环保合成氧化石墨烯
影响因子：
10.9
作者：
Chen, Ji;Yao, Bowen;Shi, Gaoquan
通讯作者：
Shi, Gaoquan
影响因子：
10.8
作者：
Balandin, Alexander A.;Ghosh, Suchismita;Lau, Chun Ning
通讯作者：
Lau, Chun Ning