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#Mon Aug 09 12:00:46 CEST 2010
Text__1-aKQKOcEd-WfYQ0GneCwQ_title=Photoelectric Selenium Cell
Text__1-aKQKOcEd-WfYQ0GneCwQ_text=<p>The photoelectric effect of selenium is discovered at the end of the nineteenth century. Exposure to light increases the conductivity of the semiconductor selenium by more than ten times. This discovery becomes the point of departure for the development of semiconductor technology.</p>