Luminescence kinetics of nanosize poly(di-n-hexyl)silane embedded in nanoporous silica

A. Dementjev, V. Gulbinas, L. Valkunas, N. Ostapenko, S. Suto, A. Watanabe

Research output: Contribution to journalArticlepeer-review


Excited state relaxation kinetics of nanostructured poly(di-n-hexyl)silane embedded in nanoporous silica SBA-15 with the pore size of 10nm was considered with the nanosecond and picosecond time resolution by using photomultiplier with fast response time and by means of time correlated two-pulse excitation. Measurements were carried out at room temperature. For comparative reasons the exciton relaxation kinetics of poly(di-n-hexyl)silane films are also considered. It was found that the photoluminescence of nanostructured poly(di-n-hexyl) silane decays exponentially with about 6ns time constant, which is more than 10 times longer than that of the film. The longer decay time should be related with slower exciton diffusion and lower density of exciton quenching centers.

Original languageEnglish
Pages (from-to)327/[679]-334/[686]
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - 2007 Jan


  • Nanoporous silica
  • Nanosize polysilane
  • Photoluminescence kinetic
  • Polysilane film


Dive into the research topics of 'Luminescence kinetics of nanosize poly(di-n-hexyl)silane embedded in nanoporous silica'. Together they form a unique fingerprint.

Cite this