By marrying tiny crystals called quantum dots to miniature wires, researchers are developing new materials that show promise for splitting water into oxygen and hydrogen fuel, which could be used to power cars, buses, boats and other modes of transportation.

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By marrying tiny crystals called quantum dots to miniature wires, researchers are developing new materials that show promise for splitting water into oxygen and hydrogen fuel, which could be used to power cars, buses, boats and other modes of transportation.