报告摘要：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.

个人简历：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.