| 查看: 74 | 回复: 0 | |||
[交流]
西交利物浦大学三校联合培养博士项目招生/宣辰博士课题组
|
|
为培养具备全球领导力、跨学科创新能力和国际科研协作水平的复合型研究人才，西交利物浦大学（简称“西浦”）充分发挥国际化办学特色，联合西安交通大学（简称“西交大”）与英国利物浦大学（简称“利物浦大学”）依托三校长期建立的战略合作优势，整合顶尖科研资源联合启动三校博士培养合作项目。 项目主导师： 宣辰博士 项目课题： Research on thermoelectric parameter decoupling and key technique for high efficient and orderly heat-to-electricity conversion面向能量高效有序转换的一维碳纳米管薄膜热电解耦机制与方法研究 项目编号： SFXJTU2510 项目简介： 热电能量转换技术能利用温差将热能直接转换为电能在工业余热回收、地热资源开发以及军事国防领域具有重要应用价值。然而传统研究方法忽视了热电能量转换的系统有序以及多尺度关联属性，仅关注源侧热能到电能的转换效率，导致热电器件具有输出功率密度低的瓶颈。研究难点在于热电参数解耦机制不清楚、高性能热电材料制备方法缺乏、热电器件结构设计方案不完善。针对上述难点，申请人拟从热电解耦机制、材料制备方法、器件结构设计三个层面开展研究：揭示基于载流子量子限域效应和声电平均自由程程差的热电解耦新机制，实现柔性薄膜中电导率和塞贝克系数、电导率和热导率的解耦；系统研究温度和溶液极性对碳纳米管排列的影响规律，提出基于温度马兰戈尼效应制备取向好、致密度高碳纳米管薄膜的新方法；设计变截面无连接节点的新器件，从根本上消除器件中接触电阻，提高柔性薄膜热电器件的输出功率密度。相关机制与研究成果将从理论、方法到技术源头上提升我国热电能源转换领域的创新能力，推动薄膜热电器件在余热发电方面的应用。 Thermoelectric energy conversion technology can directly convert thermal energy into electrical energy by using the temperature difference. The bottleneck that restricts the improvement of the output power density of flexible thermoelectric devices is how to realize the decoupling of the three key thermoelectric parameters (electrical conductivity, Seebeck coefficient and thermal conductivity). In order to solve this bottleneck, the applicant intends to carry out research from three levels: the thermoelectric parameters de-coupling mechanism, the preparation method of thermoelectric materials, and the structural design of thermoelectric devices: to reveal a new mechanism of thermoelectric parameters de-coupling based on the carrier quantum confinement effect and the mean free path difference between phonon and electron, to use the discontinuous characteristics of nanomaterials to control the Fermi level close to the van Hove singularity through doping, to achieve the decoupling of conductivity and Seebeck coefficient, and to control the cross-sectional width of nanomaterials to scatter phonon conduction electrons, so as to realize the decoupling of conductivity and thermal conductivity; The influence of temperature and solution on the arrangement of carbon nanotubes in the film will be systematically studied, and a new method for the preparation of high-density carbon nanotube films with good orientation and density based on the temperature Marangoni effect will be proposed. It is proposed to design a new device with variable cross-section and joint-free structure, which fundamentally eliminates the contact resistance in the device and provides the output power density of flexible thin-film thermoelectric devices. The relevant mechanisms and research results will enhance the innovation ability of China's thermoelectric energy conversion field from the theory, method and technical source, and promote the application of thin-film thermoelectric devices in waste heat power generation. 具体信息请跳转至 https://mp.weixin.qq.com/s/ndwDmpGt74OvxEAI7Bwg3w 该博士项目实行课题制招生，全年接受申请。有意向的申请人请主动联系导师: 宣辰博士 (chen.xuan@xjtlu.edu.cn) 或王洪教授 (hong.wang@xjtu.edu.cn) |
回复此楼» 猜你喜欢
现代”学阀”该如何界定
已经有12人回复
-
国社科系统bug了，是不是要放榜了？
已经有10人回复
-
课题组招2027级博士 上海工程技术大学 激光智能制造方向
已经有4人回复
-
上海工程技术大学 激光智能制造课题组 2027级博士研究生招生
已经有3人回复
-
上海工程技术大学激光智能制造课题组｜2027级博士研究生招生公告
已经有11人回复
-
我的奶奶
已经有3人回复
» 本主题相关商家推荐: (我也要在这里推广)
