报告时间：2013年12月23日（周一） 14:00
报告地点：beat365手机中文官方网站新楼A308报告厅
报告人：盛兴博士&尹斓博士
报告联系人：蒋凯教授
欢迎各位师生前来参加！

（一）报告题目：Light Management for High Efficiency Photovoltaics
报告人：伊利诺伊大学香槟分校(UIUC）盛兴 博士

High efficiency solar cells represent a clean and efficient method to utilize the abundant solar energy in both space and terrestrial applications. Understanding and manipulating the flow of light in materials enable revolutionary advances in photovoltaic energy conversion. In this talk, three examples will be discussed: (1) numerical optimization and experimental demonstration of light trapping textures for thin-film Si cells; (2) integration of GaAs micro-size cells with luminescent materials; (3) a novel mechanical stacking approach to demonstrate multijunction cells with an ultrahigh efficiency. These concepts suggest promising paths to photovoltaic systems that utilize the entire solar spectrum.

Biographical Sketch:
Xing Sheng obtained his PhD degree in materials science and engineering at Massachusetts Institute of Technology in 2012 (advisor: Prof. Lionel C. Kimerling), and his B.Eng degree in materials science and engineering at Tsinghua University in 2007. Currently he is a postdoctoral researcher at University of Illinois at Urbana-Champaign, working with Prof. John A. Rogers. Xing Sheng's research includes fundamental and applied aspects of light and materials interactions and their applications on advanced optoelectronic devices and systems. His past experiences include design and fabricating novel electronic and photonic structures for high performance solar cells, LEDs and lasers.

（二）报告题目：Materials degradation: from sustainable metallurgy to water soluble electronics
报告人：伊利诺伊大学香槟分校(UIUC）尹斓 博士

Materials degradation has an important impact on manufacturing, infrastructure, environment and human health. Novel technologies addressing environmental and biomedical issues post new challenges in understanding materials chemistry and degradation property, which is critical for functional system development. The identification of chromium-based anode materials with superior corrosion resistance enables a novel carbon-free electrolytic steel production process, namely molten oxide electrolysis (MOE) that can potentially mitigate greenhouse gas emission and produce metal of high metallurgical quality. On a different path, making use of materials degradation in aqueous environments opens a new era of dissolvable electronics that can physically disappear after functioning. Its broad applications include implantable devices, environmental sensors and security electronics.

Biographical Sketch:
Dr. Lan Yin is currently a postdoctoral associate in John Rogers group at UIUC, where she is working on non-conventional water soluble electronics. Her research interests include fundamental studies of materials degradation and functional system development with applications for sustainable metallurgy, energy storage and environmental/biomedical sensors. Before joining UIUC, she is a postdoctoral associate in Donald Sadoway group at MIT. Yin received her Ph.D. at Carnegie Mellon University under Professor Sridhar Seetharaman (2011) and B.S. in Materials Science and Engineering from Tsinghua University in China (2007).