Effect of bridging group in poly(titanyloxo-phthalocyanine)s on photocurrent generation

Duk Sang Han, Ying Jun Li, Jeong Soo Kim, Eunkyoung Kim

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


Photoelectric properties of soluble poly(titanyloxo-phthalocyanine)s, PTiOPc, in which phthalocynaine rings were bridged by carbonyl, sulfur dioxide, or alkylene groups, were investigated by using a photoelectrochemical techniques. Soluble poly(titanyloxo-phthalocyanine)s were synthesized by the condensation of phthalic anhydride, dianhydrides, Ti(OBu)4, and urea in tetramethylene sulfone, followed by hydrolysis in an aqueous solution of KOH containing NaCl. Thin films of PTiOPc showed photocurrent of 2 - 10 μA/cm2 upon excitation with a light above 560 nm under external potential of 0.6 V (vs Ag/AgCl). The intensity of the photocurrent was highly dependent on the polymer structure. Thin film of PTiOPc with carbonyl bridging groups showed highest photocurrent generation, whereas that with hexafluoroisopropylidene groups showed lower photocurrent. XRD of PTiOPc indicated that ordering of the polymer, induced by the bridging group, relates to the photocurrent.

Original languageEnglish
Pages (from-to)62-63
Number of pages2
JournalSynthetic Metals
Issue number1
Publication statusPublished - 1999 May
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: 1998 Jul 121998 Jul 18

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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