Breakthrough for Designing High-Efficiency Solar Cells & LEDs
Added Apr 5, 2017 | Rate View top rated
Scientists at Los Alamos National Laboratory are creating innovative 2D layered hybrid perovskites that allow greater freedom in designing and fabricating efficient optoelectronic devices. Applications could include low-cost solar cells, LEDs, laser diodes, detectors, and more. Their work could overturn conventional wisdom on the limitations of device designs based on layered perovskites. The new 2D, near-single-crystalline thin films have an out-of-plane orientation so that uninhibited charge transport occurs through the perovskite layers in planar devices. This research finds the existence of "layer-edge-states" at the edges of the perovskite layers which are key to both high efficiency of solar cells and high fluorescence efficiency for LEDs.
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