学术报告:面向光电,能源与显示应用的硅基纳米线调控新技术
发布时间: 2017-04-12 浏览次数: 72 文章来源: 电子科学与工程学院

报告题目:面向光电,能源与显示应用的硅基纳米线调控新技术

报告人:余林蔚

时间:2017414日 上午 10

地点:学科楼322

主办单位:电子科学与工程学院

报告人简介:

余林蔚,1978年出生,南京大学教授,博士生导师,国家青年千人计划,江苏双创团队及个人人才,江苏省杰出青年基金获得者。在纳米线生长控制领域的一系列原创性工作多次被学术新闻媒体SPIE Newsroom, APS Physics Focus Nature Materials Highlights 报道。相关工作已发表学术论文80余篇,其中以第一或通讯作者在Nature Communications, Physical Review Letters, Nano Letters, Advanced MaterialsAdvanced Functional Materials, Nano Energy, Nanoscale等国际一流学术期刊上发表论文40余篇。参加国际会议60余次,其中邀请报告14次。申请和获得国际PCT发明授权专利2项和国内发明专利5项,申请受理国际和国内专利9项。

报告内容:

Self-assembly Si nanowires (SiNWs), produced by locomotive liquid metal catalyst droplets, are popular building blocks in developing a new generation of nano-electronics, sensors, and energy harvesting and storage applications. Particularly, a programmable morphology, position and composition control of the 1D SiNW building blocks lies in the heart of implementing various functionalities. In this talk, we will first introduce a new in-plane growth strategy that relies on a tamable movement of liquid catalyst droplet to impose a series of unprecedented morphological and compositional engineering of the SiNWs, with yet a precise self-position capability that is highly desirable for upscaling the SiNW-based high performance nanoelectronics. Examples will include high mobility fin-like SiNW transistors, highly stretchable c-SiNW springs and homo or hetero-epitaxial writing growth of in-plane SiNWs. Then, we will continue to address the opportunities of vertical SiNWs array for high efficiency photovoltaic and bio-inspired sensor applications, constructed in a novel single or tandem radial junction solar cell architecture. At the end, a hybrid hierarchical nanowires structure with properly controlled alloy composition and geometric design will be presented, which are explored for high capacity, high rate and durable lithium ion battery.