====== Research ======

Research in the Lewis Group focuses on photoelectrochemistry and chemical vapor sensing.

{{  research:lizwirepicture.png?250x291}}
===== Photoelectrochemistry =====

We study ways to harness sunlight to generate chemical fuel, specifically by splitting water to generate hydrogen. These efforts have as their final goal the creation of a photoelectrochemical cell similar to the one pictured at right.

This cell consists of nanostructured arrays of anodes and cathodes, oxidation and reduction catalysts, and a central conductive membrane that allows for ion exchange. Various subgroups are addressing the challenges inherent in developing this cell:

  * [[research:anode|Photoanodes for Water Oxidation]]
  * [[research:cathode|Silicon Photocathode Arrays]]
  * [[research:membrane|Water-Splitting Membrane]]
  * [[research:catalysts|Hydrogen Evolution Catalysis]]
  * [[research:surfaces|Silicon Surface Chemistry]]
  * [[research:lightmaterial|Light-Material Interactions]]
  * [[research:absorbers|Non-conventional Solar Absorbers]]

===== Chemical Vapor Sensing =====

We are developing an [[research:nose| Electronic Nose]] that consists of arrays of chemically sensitive conducting polymer films capable of detecting and quantifying a broad variety of analytes.



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