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Optimizing the Synthesis of Zinc‐rich Gallium Zinc Oxynitrides by Combining Co‐Precipitation and Moisture‐Assisted Nitridation by Henning Jansen; Jasper Menze; Martin Muhler is a Chemistry article available to read on EtoBox.

What is Optimizing the Synthesis of Zinc‐rich Gallium Zinc Oxynitrides by Combining Co‐Precipitation and Moisture‐Assisted Nitridation about?

ZnO‐co‐doped GaN is a promising catalyst for photocatalytic overall water splitting in the visible light range. The conventional high‐temperature synthesis has the drawback that only low amounts of Zn^2+^ ions can be incorporated into the GaN:ZnO matrix due to a substantial loss of volatile Zn metal during the nitridation of the binary oxides in flowing NH~3~. By applying moisture‐assisted nitridation of a co‐precipitated GaZn precursor under milder conditions it was possible to significantly reduce the Zn loss during nitridation. Using a GaZn precursor with a high Zn content, GaN:ZnO nanoparticles containing high amounts of Zn were obtained. The bandgap was found to decrease nearly linearly with increasing Zn content. Concomitantly, the defect density and structural disorder increased with increasing Zn content.

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Author

Henning Jansen; Jasper Menze; Martin Muhler

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0372-7874)

Published

2018

Language

EN

Field

Chemistry (Physical Sciences)