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FCS3280: Energy Efficient Homes: Introduction to LED Lighting

Figure 1. PN junction image from NLPIP Lighting Answers, Vol. 7, Issue 3, May 2003 (http://www.lrc.rpi.edu/programs/nlpip/lightingAnswers/led/whatIsAnLED.asp)

Credit: Image courtesy of Lighting Research Center, Rensselaer Polytechnic Institute