Browsing the "Bell Labs" Tag

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From Selenium to Silicon and Beyond: Celebrating the 60th Anniversary of the First Solar Cell Capable of Converting Enough Sunlight Directly into Electricity for Practical Power

By John Perlin, author of Let It Shine* The solar cell had its birth in 1873, as bars of selenium. When two British scientists,¬†William Grylls Adams and Richard Evans Day, in 1876 exposed the bars to candlelight¬†they discovered something totally new: that light, not heat, could directly generate¬†electricity in certain materials such as selenium. Adams […]

April 20th