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Large-scale energy demands will require low-cost, earth-abundant materials for high efficiency solar energy conversion. Here we present ZnSnxGe1−xN2 as a tunable band gap photovoltaic absorber layer with a predicted range of 1.4 eV to 2.9 eV. Thin films of ZnSnxGe1−xN2 are synthesized by reactive RF co-sputtering with a wide range of compositions. X-ray diffraction shows a linear shift in lattice...
A growing need for eco-friendly energy sources have led recently to a frantic search of new compositional systems for photovoltaic applications. The nanocomposite titania-germanium (TiO2-Ge) systems represent a new viable family of optoelectronic materials. Their structural, optical and electronic properties can be easily tailored by customizing the density and size of Ge dots in the TiO2 matrix....
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