Photoluminescence properties of alternating copolymers with alkoxy substituted phenylene vinylene and N-hexylphenothiazine

Suk Ho Choi, Bin Nal Yoon, Hosun Lee, Dong Hoon Choi, Kwang Yong Oh, Jae Hong Kim, Jeongryul Kim, Hakwon Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We have studied photoluminescence (PL) of dialkoxy phenylene vinylene homopolymer (P(MHPV)) and its copolymers with phenothiazine derivative (P(MHPV-co-HPhz) and P(HPV-co-HPhz)) under 488-nm laser irradiation. In P(MHPV) films, the PL intensity is observed to increase as the sample temperature is decreased, which is in strong contrast with P(HPV-co-HPhz) films. While the PL intensity of P(HPV-co-HPhz) shows an increase with cooling down to 150 K, it shows a small decrement below that temperature, The PL spectra of P(MHPV) are blueshifted with increasing temperature while those of P(HPV-co-HPhz) are almost independent of the sample temperature. The PL properties of P(MHPV-co-HPhz) are quite similar to those of P(HPV-co-HPhz). The PL peak positions of the three polymers are linearly correlated with the band gap energy measured by ellipsometry. It is proposed that these phenomena are due to the temperature dependence of the structural variation of PPV derivatives based on possible mechanisms.

Original languageEnglish
Pages (from-to)934-937
Number of pages4
JournalJournal of the Korean Physical Society
Issue number4
Publication statusPublished - 2004 Apr
Externally publishedYes


  • Phenothiazine
  • Phenylene vinylene polymer
  • Photoluminescence
  • Temperature effects

ASJC Scopus subject areas

  • General Physics and Astronomy


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