Photoluminescent and electroluminescent properties of DCM-1 dispersed poly(p-phenylene vinylene) derivatives

Guolun Zhong, Kyungkon Kim, Dong Won Lee, Jung Il Jin

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5 Scopus citations


The single layer devices utilizing poly[2-(carbazol-9-yl)-5-(2-ethylhcxyloxy)-1,4-phenylene vinylene] (CzEh-PPV) and poly[2-{4-[5-(4-tert-butylphenyl)-l,3,4-oxadiazolyl]-phenyl}-5-(2-ethythexyloxy)-l,4-phenylene vinylene] (OxdEh-PPV) doped with varying weight percent of 4-(dicyanomethylene)-2-methyl-6-[p-(dimethylamino)styryl]-4H-pyran (DCM-1) were fabricated and their photo luminescence (PL) and electroluminescence (EL) properties were discussed in this investigation. The PL spectra of DCM-1 doped polymers show that the emission is mostly from DCM-1 and Förster energy transfer may occur between DCM-1 and the two polymers. On the other hand, field-dependence of the emission spectra of EL devices was observed in detail. For the CzEh-PPV/DCM-1, the emission at the wavelength of 534 nm remains unchanged as the level of DCM-1 increases, whereas the peak at 572 nm is intensified with increasing both the additive level and applied electric field. For the OxdEh-PPV/DCM-1, the main peak is red-shift as the level of DCM-1 increases and blue-shift as the applied electric field does.

Original languageEnglish
Pages (from-to)731-735
Number of pages5
JournalSynthetic Metals
Issue number9-10
StatePublished - 5 May 2006

Bibliographical note

Funding Information:
This research was supported by the Ministry of Science and Technology, Republic of Korea and the Korea Science and Engineering Foundation, through the Center for Electro- and Photo-Responsive Molecules, Korea University. G. Zhong and K. Kim wish to acknowledge the support by the Ministry of Education through the Brain Korea 21 program. The financial support from NIT, Zhejiang University is also grateful.


  • DCM-1 doping
  • Electroluminescence
  • Field-dependence
  • Förster energy transfer
  • Photoluminescence
  • Poly(phenylene vinylene) derivatives


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