Luminescence properties of platinum porphyrin embedded in multilayered polymer nanosheets

Masaya Mitsuishi, Tao Chen, Yu Gao, Tokuji Miyashita

Research output: Contribution to journalReview article

Abstract

The paper presents luminescence properties of platinum porphyrins embedded in ultrathin polymer Langmuir-Blodgett (LB) films (nanosheets). We prepared amphiphilic copolymer of platinum porphyrin with N-dodecylacrylamide (p(DDA/PtTPP)). The copolymer p(DDA/PtTPP) with 6mol% PtTPP content took a stable monolayer formation at the air-water interface. Luminescent p(DDA/PtTPP) nanosheets were successfully assembled on solid substrates by the vertical dipping method. The luminescence intensity as a function of the number of layers revealed that platinum-porphyrin is effectively quenched by molecular oxygen for multilayered p(DDA/PtTPP) nanosheets with more than ten layers. Atomic force microscopy revealed that the p(DDA/PtTPP) nanosheets had relatively rough surfaces, leading to high surface-tovolume ratio. The oxygen sensitive polymer nanosheet multilayers enables us to monitor dissolved oxygen concentration in water.

Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalInternational Journal of the Society of Material Engineering for Resources
Volume20
Issue number1
DOIs
Publication statusPublished - 2014 Apr 1

Keywords

  • Langmuir-Blodgett
  • Luminescence
  • Nanosheet
  • Platinum porphyrin

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Mechanical Engineering

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