WCSA - On This Day - April 25, 2021 - Bell Labs Demonstrates the First Practical Silicon Solar Cell in 1954


(Worldkings.org) Solar cells, which convert sunlight into electrical current, had their beginnings more than a hundred years ago, though early solar cells were too inefficient to be of much use. In April, 1954, researchers at Bell Laboratories demonstrated the first practical silicon solar cell.

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