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Yifeng Shi

Yifeng Picture

Research Associate

Education

  • Ph.D. (Physical Chemistry), Department of Chemistry, Fudan University, 2007
  • M.E. (Materials Engineering), Shanghai Institute of Ceramics, Chinese Academy of Sciences, 2003
  • B.S. (Polymer Materials), Department of Macromolecular Science, Fudan University, 2000

Research: Conducting metal oxide nanowires

The specific aims of my research are to develop novel transparent conducting films based on percolating metallic conducting oxide nanowires as potential low cost substitutes for transparent tin-doped indium oxide (ITO). The entire area of transparent conductors has been completely dominated by tin-doped indium oxide (ITO). Given the relative scarcity of the element indium, its increasing use in lead-free solder, and the great importance of ITO in solar cells – this apart from the already significant use in all kinds of electronic displays – the need for alternative materials is urgent. An alternative approach is produce transparent composite conductors, where the conducting component is a high aspect ratio material such as a nanowire. Loss of transparency due to the high optical absorbance is offset by the low percolation threshold of high aspect structures such as nanotubes and nanowires.

Contact

yshi [at] chem.ucsb.edu

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