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Charge carrier recombination dynamics revealed by Edinburgh Instruments’ Spectrometers


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