January 1, 2011.
Envisioned is a solar powered thin film device that converts carbon dioxide and water vapor into methane using a composite of tungsten(VI) oxide nanowires and titanium(IV) oxide nanowires. Tungsten(VI) oxide nanowires are capable of absorbing a higher percentage of the sun's radiation compared to titanium(IV) nanowires since WO3 nanowires absorb blue light and TiO2 nanowires absorb UV light. However, WO3 nanowires have a lower light energy conversion efficiency and a lower photostability compared to TiO2 nanowires. This poster discusses the synthesis of the WO3 nanowires. It is important to synthesize WO3 nanowires in different sizes and shapes to show that the material is tunable and scalable. Doing so will allow the material to have broader applications.
NASA Ames Research Center (ARC)
This material is based upon work supported by the S.D. Bechtel, Jr. Foundation and by the National Science Foundation under Grant No. 0952013. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the S.D. Bechtel, Jr. Foundation or the National Science Foundation.