(1) Field of the Invention
The disclosure herein relates to a solar cell and a method of fabricating the solar cell.
(2) Description of the Related Art
Solar cells use a photovoltaic effect to convert optical energy into electrical energy. Solar cells may be classified into silicon solar cells, thin film solar cells, dye-sensitized solar cells, and organic polymer solar cells, according to their materials. Solar cells are used as main or sub power sources for various electronic products, artificial satellites, and rockets.
Such a solar cell includes: a first semiconductor having a first conductive type, a substrate; and a second semiconductor disposed on the front surface of the first semiconductor and having a second conductive type opposite to the first conductive type. The first and second semiconductors form a p-n junction. Light is shed on the p-n junction to form pairs of electrons and holes in the first and second semiconductors. The holes and the electrons are moved by an electrical potential difference in the p-n junction, thereby generating electric current.