Electrons and holes injected into the polymer film form bound states called excitons that break down under electrical current, emittinglight as they do so.
电子和空穴注入高分子膜所形成的界态称为电子空穴对，电子空穴对冲破电流的阻碍，于是便产生了光。
2
The performance of polymerlight-emitting diodes was optimized by dispersing titania nanotubes into different functional layers.
在聚合物电致发光器件中，通过在不同功能层中掺杂二氧化钛纳米管来改善器件的性能。
3
A charge transport layer of an organic lightemitting diode contains the conducting polymer and the reactant of the unsaturated compound.