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Phonon transport in Two-Dimensional Materials

创建时间:  2021-09-18  毛霜霜   浏览次数:

标题:Phonon transport in Two-Dimensional Materials

报告人:陈杰 教授(同济大学)

时间:2021年09月23日(周四)下午1:30

地点:上海市延长路149号 力学所 104 会议室

Two-dimensional (2D) materials exhibit peculiar thermal transport properties, and thus have attract substantial recent interests. In this talk, I will present the recent advances in my group on the phonon transport in 2D materials from the following three aspects. First, I shall discuss the thermal transport properties in pristine 2D materials, including quasi one-dimensional phonon transport in borophene, and an unusual thermal rectification phenomenon in pristine graphene. The underlying physical mechanisms will be discussed in details. Then, I will focus on the effect of coherent phonon transport in graphene, and a generalized decay law for thermal phonon is proposed to take into account the coherent effect. The coherent wave effect is further demonstrated via the wave packet simulation in graphene superlattice structure, in which the total-transmission and total-reflection of individual phonons are clearly observed. Finally, I will move to the interfacial phonon transport in 2D materials, including the solid/liquid interfaces. In particular, I shall discuss the physics for the rotation-angle dependent interfacial thermal conductance in graphene/hexagonal boron nitride van der Waals heterostructure, and how 2D material can be used to enhance the thermal transport across rough solid/solid interface.

陈杰,同济大学物理学院长聘岗正教授,博士生导师,主要从事纳米尺度热传导领域的研究工作。已在国际知名学术期刊Physics Reports,Nature Communications等SCI源杂志上发表SCI论文60余篇,包括影响因子10以上论文14篇,ESI高被引论文3篇,H因子30。受邀在国际会议上做邀请报告10余次,授权国际发明专利1项。主持完成了科技部重点研发计划子课题、国家自然科学基金青年项目以及上海市自然科学基金各一项。

联系人:江进武(jiangjinwu@shu.edu.cn)

上一条:力学所SEMINAR 919:3D打印连续纤维增强复合材料力学高性能化研究

下一条:力学所SEMINAR 918:极端变形问题的数值模拟方法与软件


Phonon transport in Two-Dimensional Materials

创建时间:  2021-09-18  毛霜霜   浏览次数:   

标题:Phonon transport in Two-Dimensional Materials

报告人:陈杰 教授(同济大学)

时间:2021年09月23日(周四)下午1:30

地点:上海市延长路149号 力学所 104 会议室

Two-dimensional (2D) materials exhibit peculiar thermal transport properties, and thus have attract substantial recent interests. In this talk, I will present the recent advances in my group on the phonon transport in 2D materials from the following three aspects. First, I shall discuss the thermal transport properties in pristine 2D materials, including quasi one-dimensional phonon transport in borophene, and an unusual thermal rectification phenomenon in pristine graphene. The underlying physical mechanisms will be discussed in details. Then, I will focus on the effect of coherent phonon transport in graphene, and a generalized decay law for thermal phonon is proposed to take into account the coherent effect. The coherent wave effect is further demonstrated via the wave packet simulation in graphene superlattice structure, in which the total-transmission and total-reflection of individual phonons are clearly observed. Finally, I will move to the interfacial phonon transport in 2D materials, including the solid/liquid interfaces. In particular, I shall discuss the physics for the rotation-angle dependent interfacial thermal conductance in graphene/hexagonal boron nitride van der Waals heterostructure, and how 2D material can be used to enhance the thermal transport across rough solid/solid interface.

陈杰,同济大学物理学院长聘岗正教授,博士生导师,主要从事纳米尺度热传导领域的研究工作。已在国际知名学术期刊Physics Reports,Nature Communications等SCI源杂志上发表SCI论文60余篇,包括影响因子10以上论文14篇,ESI高被引论文3篇,H因子30。受邀在国际会议上做邀请报告10余次,授权国际发明专利1项。主持完成了科技部重点研发计划子课题、国家自然科学基金青年项目以及上海市自然科学基金各一项。

联系人:江进武(jiangjinwu@shu.edu.cn)


上一条:力学所SEMINAR 919:3D打印连续纤维增强复合材料力学高性能化研究

下一条:力学所SEMINAR 918:极端变形问题的数值模拟方法与软件