Material design approach improves solar cell efficiency

The correlated electron "metal" SrRuO3 exhibits strong visible slight absorption. Overlaid here on the AM1.5G solar spectrum, it can be seen that SrRuO3 absorbs more than 75 times more light than TiO2. The structural, chemical, and electronic compatibility of TiO2 and SrRuO3 further enables the fabrication of heterojunctions with exciting photovoltaic and photocatalytic response driven by hot-carrier injection. Lane Martin, University of Illinois.

Development method allows researchers to more efficiently utilize the solar spectrum.

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Observing titanium dioxide with ultrashort light pulses

An ultraviolet light pulse hits the titanium dioxide crystal. The laser pulse induces a redistribution of weakly bound electrons, which leads to a shift of the equilibrium position of the atoms in the crystal lattice. Image: Thorsten Naeser.

Scientist observe the impact of subtle changes in the electron distribution of a crystal on its atomic structure on ultrashort time scales.

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Combined STM and DFT studies of rutile surface chemistry

STM and DFT studies of rutile surface chemistry

New work looks at recent progress in STM and DFT studies on the electronic structure of reduced rutile titanium dioxide.

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Tuning Heteroatoms: Making Efficient Photocatalysts

A SEM image of one of the titanium dioxide microspheres synthesized in this experiment.

An international research team have designed and developed a method for synthesizing photocatalysts with tunable heteroatom distribution.

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Increasing Interface Interaction for Titanium Medical Implants

A titanium suface interface

A new approach to the development of functional and biocompatible coatings for titanium metal implants aims to reduce their failure rates by altering the nano-morphology of the surface.

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Shells, Fibers, and Superstructures

A new heteroepitaxial method of producing Ti02 nanomaterials with size, shape, and array control is discovered.

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