A늌W  ݷ֕   The Electro-Optics Association  The Photonics Society of Chinese-Americans Northern California Chapter

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2015 Seminar

20150114 (Stanford, CA)

Thin-film solar cell

Abstract:

Thin-film crystalline high-efficiency and low-cost solar cells are expected to play a significant role for a greener energy source. The new technology development allow the active semiconductor layer can be 10 C 100 times thinner than the conventional solar cells by advanced light trapping. Even more importantly, an improvement in efficiency and open circuit voltage (Voc) in thin-film solar cells can be achieved due to carrier confinement.

 

In the first part of this talk, I will first introduce the solar cell concept and the industry. Then, the talk will focus on optical engineering and absorption improvement in nano-structured Si and GaAs thin-film solar cells. Next, I will present the Voc and efficiency enhancement in thin-film Si solar cells in both theoretical simulation and experimental demonstration. This technology also reduces the requirement of material quality and lower the total cost.

 

Bio: 

Dr. Yijie Huo is a research associate in the department of electrical engineering at Stanford University. His research is focused on Si and III-V nano-structured thin film solar cells. His research also includes group IV materials and devices for on-chip interconnection.

Dr. Yijie Huo received B.E. degree in electrical engineering from Tsinghua University in 2002, M.S. degree in electrical engineering from University of Maryland College Park in 2004, and Ph.D degree in electrical engineering from Stanford University in 2010.