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报告题目 |
NANOSTRUCTURES FOR ELECTRONICS, SENSORS AND ENERGY HARVESTING DEVICES |
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报告时间 |
2013年12月17日下午3:30 |
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报告地点 |
合肥微尺度物质科学国家实验室一楼科技展厅 |
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摘要 |
Materials made of nano/micro-structures have unique physical properties, such as fast carrier transport, high surface-to-volume ratio, mechanical flexibility, sub-wavelength optical waveguiding, etc. These intriguing properties can be harnessed for a variety of applications in electronics and photonics. In the past, we have fabricated an assortment of semiconductor nanowires, including Si, Ge, CdSe, InAs, ZnO, etc. We have performed systematic investigations on electronic and optoelectronic properties of these materials by configuring them as transistors, photodiodes and sensors. More importantly, we have developed scalable processes to integrate semiconductor nanowires into ordered arrays for large scale electronic applications. Utilizing these approaches, we have fabricated all-nanowire based high frequency devices and integrated circuits with functionality. In the meantime, we have developed several self-organized approaches to fabricate three-dimensional (3-D) nanostructures. These 3-D structures have demonstrated geometry dependent photon management property thus have promising potential for photonic applications. In particular, we have fabricated 3-D nanopillar arrays, nanospike arrays and nanowell arrays. Optical absorption properties of these nano-engineered structures have been investigated with experimental methods as well as theoretical simulations. To explore their photonic applications, nanopillar and nanospike arrays have been fabricated into photovoltaic devices; preliminary results have shown that they can demonstrate improved performance as compared to planar control samples, indicating their potency for cost-effective solar cells. |
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报告人 |
Prof. Zhiyong Fan, Hong Kong University of Science and Technology |
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报告人简介：⑴现在工作单位及职称 ⑵主要研究方向 ⑶学术成就简述（100字以内） Dr. Zhiyong Fan recieved his B. S. and M. S. degree in physical electronics from Fudan University, Shanghai, China, in 1998 and 2001. He received Ph.D. degree from University of California, Irvine in 2006 in Materials Science. From 2007 to 2010, he worked in University of California, Berkeley as a postdoctoral fellow in department of Electrical Engineering and Computer Sciences, with a joint appointment with Lawrence Berkeley National Laboratory. In May 2010, he joined Hong Kong University of Science and Technology as an assistant professor. Dr. Fan’s research interest focuses on fabrication and characterization of nanomaterials and nanostructures; their applications for electronics and energy harvesting, particularly on photovoltaics. He has published over 80 referred journal and conference papers, including Nature Materials, Nano Letters, Advanced Materials, Proceedings of The National Academy of Science, USA, etc. These papers have received over 4,000 citations. | |
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参加者：所有感兴趣的老师和学生 | |
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联系人：俞书宏 | |
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主办单位：微尺度、化学与材料科学学院、外事办 | |
