童浩

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Personal information

教授     博士生导师    

所在单位:集成电路学院

学历:研究生(博士)毕业

学位:博士学位

毕业院校:华中科技大学

学科:微电子学与固体电子学
曾获荣誉:
2024    华中科技大学青年五四奖章
2022    华为奥林帕斯先锋奖
2020    湖北省技术发明一等奖(排名第2)
2013    湖北省年度“十大科技事件”
2013    湖北省优秀博士学位论文
2014    湖北省优秀学士学位论文指导教师
2015    华中科技大学教师教学竞赛二等奖
2017    华中科技大学光学与电子信息学院“我最喜爱的教师班主任“
2020    华中科技大学光学与电子信息学院突出贡献一等奖

Strong interface scattering induced low thermal conductivity in Bi-based GeTe/Bi2Te 3 superlattice-like materials
发布时间:2023-08-21  点击次数:

论文类型:期刊论文
第一作者:周洋
通讯作者:童浩
合写作者:黄开谨,缪向水,徐明,程晓敏,周玲军
发表刊物:RSC Advances
所属单位:华中科技大学
学科门类:工学
一级学科:电子科学与技术
文献类型:J
卷号:9
期号:17
页面范围:9457-9461
DOI码:10.1039/C9RA01485C
发表时间:4373-05-01
摘要:The thermal conductivities of GeTe/Bi2Te3 superlattice-like materials are calculated based on density functional perturbation theory (DFPT) and measured using a 3ω method. The calculated results show that the lattice thermal conductivity or thermal diffusivity of GeTe/Bi2Te3 superlattice-like materials significantly decrease due to the effects of interfaces and Bi atoms in Bi2Te3. Our measured results are in line with the theoretical calculations, and reach an extremely low thermal conductivity at 0.162 W mK−1 compared with published work on Ge–Sb(Bi)–Te, indicating the effectiveness of modulating the thermal properties of phase change materials by using Bi-based GeTe/Bi2Te3 superlattice-like materials. Our findings give a calculation method to modify the thermal characteristics of superlattice-like materials and confirm Bi-based GeTe/Bi2Te3 superlattice-like materials as promising candidates for phase change materials with lower thermal conductivity.
发布期刊链接:https://www.researchgate.net/publication/332264653_Strong_interface_scattering_induced_low_thermal_conductivity_in_Bi-based_GeTeBi_2_Te_3_superlattice-like_materials