[Research on the synthesis and luminescence characterization of deepen red emission novel polymer].

A deep red emission polymer (PPV-Q) was synthesized successfully. The photoluminescence, electroluminescence and absorption performance of this polymer were studied in detail. The experimental results show that the polymer has strong absorption in the ultraviolet and blue emission wavelength region. The effective excitation wavelength is about 463 nm. The organic emitting diodes based on the polymer as the active layer were prepared with the device structure: ITO/PPV-Q/Al. The electroluminescence of these devices was obtained and the peak emission wavelength is about 670 nm; the electroluminescence spectra have the full width at half maximum of about 90 nm. The CIE coordinate remains constant at (x = 0.67, y = 0.32) without change with the increase in driving voltage. The electroluminescence of this device (ITO/PPV-Q/Al) shows deep red emission. However, the current increases with the increase in driving voltage.