Tiny Defect Threatens Perovskite Solar Cells' Future

University of Colorado at Boulder

A collaboration between a team led by RASEI Fellow Mike McGehee at the University of Colorado Boulder and scientists at the National Renewable Energy Laboratory (NREL) , just published in the scientific journal Joule, provides evidence to help solve one of the key hurdles to large-scale manufacture of next-generation perovskite solar cells.

Imagine you have a series of hoses connected end-to-end to water your garden. The water flows from the faucet, through each hose, and out the last nozzle. When every hose is getting enough water, the flow is strong and steady. This is like how a string of solar cells works on a solar panel; the sun's energy makes electrons (the "water") that flow through each cell, creating electricity.

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