writer：Wang Minglianga, Zhang Junxianga, Liu Juzhenga, Xu Chunxiang
keywords：electroluminescence; thin film; molecularlydopedpolymer.
source：期刊
specific source：Journal of Solid State Chemistry
Issue time：2000年

Single-layer light-emitting diodes (LEDs) are fabricated using a mixture of a blue-emitting polymer and green-emitting 9, 10-bis(phenylethynyl)anthracene as emitting layer. The blend device with these two components in the emitting layer exhibits voltage-induced evolution of the electroluminescence. But when polystyrene is also blended into the emitting layer, the EL spectra show emission bands from both ether–PPV and BPEA in proportion to concentrations of the two materials, and the spectra exhibit no change with applied voltage. This implies that doping inert polymer is helpful in suppressing voltage-induced evolution of electroluminescence in LED blends.

http://www.sciencedirect.com/science/article/pii/S002245960199098X