Samsung Display Co., Ltd.

Samsung Sdi Co., Inc.

Dong-Gi Ahn

Gug-Il Jun

In-Ki Kim

Woo-Su Lee

Byoung-Dong Kim

Byung-Joo Lee

Sang-Cheol Park

Dong-Seop Kim

Jung-Gyu Nam

Jin-Seock Kim

Kang-Hee Lee

Hyoung-Jin Park

A solar cell and a method of fabricating the same are provided according to one or more embodiments. According to an embodiment, the solar cell includes a substrate, a back electrode layer formed on the substrate, a light absorbing layer formed on the back electrode layer, and a transparent electrode layer formed on the light absorbing layer, wherein the light absorbing layer is comprised of copper (Cu), gallium (Ga), indium (In), sulfur (S), and selenium (Se) and includes a first concentration region in which concentrations of sulfur (S) gradually decrease in the light absorbing layer going in a first direction from the back electrode layer to the transparent electrode layer.

Solar cell and method of fabricating the same

A method of manufacturing a solar cell having increased light efficiency due to increased gallium distribution on a surface of a light absorption layer, the method including forming a first electrode on a substrate, forming a precursor that includes at least one of copper, gallium, and indium on the first electrode, forming a preliminary light absorption layer by providing selenium to the precursor, forming the preliminary light absorption layer further including performing a heat treatment, and forming a liquid state CuSe compound, forming a light absorption layer by providing a compound including at least one of gallium and indium to the preliminary light absorption layer, and forming a second electrode on the light absorption layer.

Method of manufacturing solar cell

Growing community of inventors

Seoul, South Korea

Dong-Gi Ahn