| abstract |
The present invention provides an EL device that contains a quantum-dots-containing layer in which quantum dots hardly coagulate even under high-temperature conditions, e.g., at a temperature of 90° C. or more, that has a good performance even if heat treatment was carried at a high temperature in its production process, that can retain its emission characteristics for a prolonged period of time, and that has high durability. n An electroluminescent device comprises a pair of electrodes, and an electroluminescent layer containing at least a luminescent layer, situated between the electrodes. The luminescent layer contains quantum dots whose surfaces are protected by one or more protective materials. At least one of the protective materials has a glass transition temperature and a melting point of 90° C. or more. |