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Materials For Clean Energy, Ashwin Ramasubramaniam, Omar A. Abdelrahman
Materials For Clean Energy, Ashwin Ramasubramaniam, Omar A. Abdelrahman
Science and Engineering Saturday Seminars
The need to transition to new and cleaner forms of energy has never been more imperative in the face of climate change. At the same time, the twin pressures from increasing global demand for energy and the scarcity of critical materials needed for new energy technologies impose additional challenges in making the transition to clean energy sources. In this workshop, we will explore how theory, modeling, and experiment are rising to the challenge of designing inexpensive, earth-abundant materials to enable the next generation of clean energy technologies. The goals of this workshop are: 1) to integrate concepts from chemistry, physics …
From Lcd To Living Liquid Crystals, Shuang Zhou
From Lcd To Living Liquid Crystals, Shuang Zhou
Science and Engineering Saturday Seminars
Liquid crystals are a family of materials that can flow like a liquid, while having orientation order, like a crystal. Traditional liquid crystals are formed by small rod- or disk-shaped organic molecules that spontaneously align with each other. The orientation direction of the liquid crystals molecules, or the director, is sensitive to external fields. For example, a few volt of electric field can cause the director rotate 90 degrees and completely change the optical property of the sample. The susceptibility to external fields made liquid crystals an ideal material for optical switching applications, the best example of which is the …