#

The photovoltaic cell consists of a back conducting electrode on bottom thin layer, p type layer silicon in the middle thick layer and n type silicon layer on top. The border between the p type layer and n type layer is labeled p n junction. The n type silicon layer is covered with a front conducting electrode, which is further coated with anti-reflective coating. The whole cell is covered with the glass cover. The arrows going inward in the cell are labeled, light photons. The electric bulb is attached to the cell through negative and positive terminals.