Electroluminescent device and a light emitting system
摘要
說明書
The polymer is preferably a urethane polymer. In the illustrated configuration, the polymer is a polyurethane material. The polyurethane may be a sheet and preferably provides a matrix upon which hydroxylated boron nitride nanosheets and ZnS particles are physically dispersed. In some configurations the boron nitride is formed as nanosheets, and the ZnS nanoparticles are bound within or mixed within the polyurethane matrix. More specifically the electroluminescence layer may be formed as two stratified parts. In a lower part, ZnS particles are stacked and the BN nanosheets are bound by the polyurethane located in the interstitial spaces among ZnS particles. In the upper part the BN nanosheets are dispersed uniformly in the polyurethane matrix.
Alternatively the boron nitride nanosheets and the ZnS particles may be dispersed on the polyurethane sheet. The polyurethane matrix comprises a plurality of polyurethane chains that are bonded together by hydrogen bonds.
