Edinburgh Instruments have recently collaborated with the Departments of Physics in the Universities of Trento, Italy and Mumbai, India to work on the recombination dynamics of copper-nitrogen doped titanium oxide for use in water splitting applications.

Thin-films of copper-nitrogen-doped titanium oxide deposited by radio frequency magnetron sputtering were investigated by X-ray and photoluminescence spectroscopic techniques.

In this work, time-resolved photoluminescence experiments clearly demonstrated that incorporation of copper and nitrogen inhibits the exciton radiative recombination of pure titanium oxide. This also resulted in increased mean lifetimes which makes copper-nitrogen-doped titanium oxide a promising candidate for applications in photo-catalytic water splitting.

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The research has been published in the Journal of Physical Chemistry C.

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