Explanation

Under the action of DC or AC electric field, the phenomenon that inorganic materials luminescence light through the excitation of current and electric field is called electroluminescence, also called electroluminescence. electroluminescent is a process that converts electric energy directly into light. At present, the common electroluminescence materials have three forms: junction type, film type and powder type. Many solid materials have the ability of electroluminescence, but semiconductor materials are widely used in practice, including binary or ternary compounds of Ⅲ - Ⅴ, Ⅱ - Ⅵ, and Ⅳ - Ⅳ groups. luminescence materials of ⅲ - ⅴ and ⅱ - ⅵ groups are typical semiconductor luminescence materials. Group IV - IV compounds, represented by zinc sulfide matrix materials, can not only be used for photoluminescence applications, such as long afterglow luminescent material, cathode ray luminescence materials, X-ray luminescence materials, but also can be used as electroluminescence materials. electroluminescence materials can be divided into DC and AC electroluminescent materials, and further divided into powder DC or AC electroluminescent materials and thin film DC or AC electroluminescent materials. The main application of electroluminescence materials is to manufacture electroluminescence displays.

Classification