双波长飞秒激光,">光热反射法,">声学失配,纳米薄膜,界面热阻," />
双波长飞秒激光,">光热反射法,">声学失配,纳米薄膜,界面热阻,"/>
dual-colorfemosecond laser,thermal boundary resistance,acoustic mismatch,"/>
山东科学 ›› 2016, Vol. 29 ›› Issue (3): 35-39.doi: 10.3976/j.issn.1002-4026.2016.03.007
李凤名1,李晓彤2,苑昆鹏2,王照亮2
LI Feng-ming1 , LI Xiao-tong 2 , YUAN Kun-peng 2 , WANG Zhao-liang 2
摘要: 纳米薄膜界面热阻在纳米结构热输运过程中起主导作用?相对于金属纳米薄膜,非金属纳米薄膜界面热输运规律更为复杂?采用改进的双波长飞秒激光光热反射法(TDTR)实验系统,测试了金属纳米薄膜?非金属纳米薄膜分别与不同介电基体之间的界面热阻?薄膜-基体德拜温比可以近似作为衡量界面声学失配程度的度量,德拜温比接近,非金属纳米薄膜界面热阻比金属纳米薄膜界面热阻大2~3倍,主要原因是电子-声子耦合作用增强了金属薄膜界面热输运能力?
中图分类号:
李凤名,李晓彤,苑昆鹏,王照亮. 飞秒激光热反射法用于纳米薄膜界面热阻研究[J]. 山东科学, 2016, 29(3): 35-39. LI Feng-ming,LI Xiao-tong,YUAN Kun-peng,WANG Zhao-liang . Application of femtosecond laser TDTR method in thermal boundary resistance of nano-film[J]. SHANDONG SCIENCE, 2016, 29(3): 35-39.
飞秒激光热反射法用于纳米薄膜界面热阻研究
Application of femtosecond laser TDTR method in thermal boundary resistance of nano-film