...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of materials science >Performance analysis of MgO/ZnO multilayer thin film as heat spreader on Al substrates for high-power LED thermal management applications
【24h】

Performance analysis of MgO/ZnO multilayer thin film as heat spreader on Al substrates for high-power LED thermal management applications

机译：MgO / ZnO多层薄膜在高功率LED热管理应用中散热器的MgO / ZnO多层薄膜的性能分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Towards improving structural, surface, and thermal properties of MgO heat spreader, ZnO thin film was interstacked into MgO. This would improve heat dissipation and keeping the temperature as well as the junction temperature of LEDs in safe operating conditions and make the MgO/ZnO multilayer thin film as a reliable heat spreader material in thermal management application. XRD measurements, FESEM, and AFM analysis were employed in examining the structure, morphology, particle size, and topography of the spin-coated monolithic MgO and multilayer MgO/ZnO thin films, respectively. Improvement in crystal size, reduction in residual stress, lattice strain, and dislocation density were recorded for MgO/ZnO multilayer films. Similarly, introduction of ZnO into MgO resulted an improvement in surface morphology with large particle size (76 nm) and decrease in surface roughness from 19.1 to 9.6 nm. From thermal transient analysis, a noticeable difference in junction temperature raise (ΔT_J = 27.07 °C) and high difference in total thermal resistance (ΔR_(th-tot) = 5.3 K/W) were recorded for LED fixed on 6:4 L MgO:ZnO thin film-coated aluminum substrate. Introduction of ZnO into MgO improves the structure and surface qualities as well as thermal performance of MgO thin film and LEDs mounted on them. The optimized multilayer MgO/ZnO ceramic-ceramic composite thin film could be employed for efficient, reliable, and longer life LEDs thermal management as heat spreader.
机译：为了改善MgO散热器的结构，表面和热性能，ZnO薄膜被丛入MgO。这将改善散热和保持温度以及LED在安全操作条件下的连接温度，并使MgO / ZnO多层薄膜作为热管理应用中的可靠散热器材料。采用XRD测量，FESEM和AFM分析，用于检查旋涂的整体镭物和多层MgO / ZnO薄膜的结构，形态，粒度和地形分别。为MgO / ZnO多层膜记录了晶体尺寸，降低残余应力，晶格菌株和位错密度的改善。类似地，将ZnO引入MgO导致粒径大（76nm）的表面形态提高，并且从19.1至9.6nm的表面粗糙度降低。从热瞬态分析，结温升高（ΔT_J= 27.07°C）的明显差异和总热阻的高差（ΔR_（TH-TO-TO-TO-THED）= 5.3 k / W），LED固定在6：4 L MgO上固定：ZnO薄膜涂层铝基底物。将ZnO引入MgO改善了结构和表面品质以及MgO薄膜的热性能，并安装在它们上。优化的多层MgO / ZnO陶瓷 - 陶瓷复合薄膜可用于高效，可靠，较长的寿命LED热管理作为散热器。

著录项

  • 来源
    《Journal of materials science》 |2020年第18期|15976-15990|共15页
  • 作者

    Muhammad Sani Idris; Shanmugan Subramani;

  • 作者单位

    School of Physics Universiti Sains Malaysia (USM) 11800 Gelugor Pulau Pinang Malaysia Department of Physics Federal College of Education Kano Nigeria;

    School of Physics Universiti Sains Malaysia (USM) 11800 Gelugor Pulau Pinang Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号