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One-dimensional Anderson insulators predicted to host bulk p
One-dimensional Anderson insulators predicted to host bulk p
One-dimensional Anderson insulators predicted to host bulk photovoltaic effect
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One-dimensional Anderson insulators predicted to host bulk photovoltaic effect
Figure 1: A light micrograph of a conventional photovoltaic cell based on polycrystalline silicon (blue crystals). Such solar cells use the photovoltaic effect to convert light into electricity. Photovoltaic devices based on the bulk photovoltaic effect could overcome some of the limitations of conventional devices. © ANTONIO ROMERO/SCIENCE PHOTO LIBRARY
Materials in which electrons are strongly localized are promising for use in next-generation solar cells and optoelectronic devices, calculations by a RIKEN theoretical physicist and a collaborator have indicated
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Conventional photovoltaic devices such as solar cells and light detectors use a phenomenon known as the photovoltaic effect to convert light into electricity. An essential element of such devices is an interface between a material with an excess of electrons and one with a deficiency of electrons (a p-n junction). But devices based on a single p-n junction have several limitations: for example, their light conversion efficiency is capped at around 34%.
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