One of the most promising sources of renewable energy is solar powered water photoelectrolysis in which energy from sunlight is stored within the chemical bonds of hydrogen (H<sub>2</sub>) and oxygen (O<sub>2</sub>). Recently, we have developed a new combinatorial metal oxide semiconductor thin film synthesis technique to aid in the discovery of new photoelectrolysis materials. The technique reproducibly generates high quality continuous gradient semiconductor films through the use of a screen-printing technique. This screen-printing technique is a cost and time-efficient method of creating a ternary phase diagrams that contain every possible three constituent alloy combination of the metal oxide. The metal oxide thin films are screened for potential photo-activity using the Solar Hydrogen Research Activity Kit (SHArK). The screen-printing technique and recently discovered photoelectrolysis semiconductors will be discussed.

Developing and applying new thin film combinatorial techniques for the discovery of new metal oxide semiconductors for the efficient photoelectrolysis of water

249th National Meeting (2015)

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