Photovoltaic (or PV, Solar Cells ) systems convert light energy into electricity. The term "photo" is from the Greek "phos" which means light. "Volt" is named from Alessandro Volta (1745-1827, He was a pioneer in the study of electricity. So you could say that" Photo-voltaics is basically light electricity! And is most commonly known as Solar Cells. Solar cell systems are already a very important part of our lives. The simplest systems power many of the small calculators and wrist watches we use everyday. PV power is the cheapest form of electricity for powering these small devices. There are many ways to make solar cells, and one of the cheapest ways is to screen print them. There are many companies in the USA that are doing this. Many US Patents have been issued for screen printing solar cells and there are many different chemical inks that can be used. The Japanese Patent is one of many.
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