Stuff for Chem Paper

Solar power is an important energy source as we run out of fossil fuels and other non-renewable energy sources run dry, and as we have to face the reality of global warming. Solar power has only recently gotten much media hype, but it has been around since the 1880s, when Charles Fritts used
selenium cells coated by an extremely thin layer of gold. The first selenium cells only converted about 1% of light into electricity, but in the 1930s Bruno Large created a solar cell using silver selenide. These too, only were able to make use of about 1% of the light energy, but selenium cells led to the development of silicon cells, which had an efficency of approximately 4.5-6%, and (though they are up to 20% efficent today) are currently the industry standard in solar power. https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVwGDQlWwqw8laHJzBomLm2ROo5TTJ9OZhaOhMFb9nXHDreI_Z3N8eENLOmjO2LALUGlBjI_VbyXPGISEhWYiqjt5tyB0gYd5FtS9srmaQxah1WJVdEKaV8ZCkKVTm0idEPvxSUdjDUm4/s1600/Solar.jpg
Perlin (1999) p. 147
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