Experimental and theoretical study of photo- and electroluminescence of divinyldiphenyl and divinylphenanthrene derivatives

L. G. Samsonova, R. R. Valiev, K. M. Degtyarenko, D. A. Sunchugashev, I. N. Kukhta, A. V. Kukhta, T. N. Kopylova

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Electronic absorption and luminescence spectra of four new compounds of divinyldiphenyl and divinylphenanthrene derivatives are investigated experimentally in tetrahydrofuran solutions and thin films obtained by thermal vacuum deposition and by spin coating of these substances embedded into polyvinylcarbazole matrix. Molecular geometry optimizations and electronic spectra have been calculated in the framework of XMC-QDPT2/6-31G (d, p) and TDDFT/B3LYP/6-31G (d, p) levels of theory. We have fabricated and studied OLED devices with the structure ITO/PEDOT:PSS/NPD/L/Ca/Al and ITO/PEDOT:PSS/PVK + L/Ca, where L is the luminophore. It is demonstrated that the photo-and electroluminescence spectra of divinyldiphenyl are not identical and undergo strong changes depending on the method of sample preparation.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume173
DOIs
Publication statusPublished - 15 Feb 2017

Keywords

  • Ab initio methods
  • Electroluminescence
  • Excimers
  • Exciplexes
  • New linear molecules
  • Photoluminescence

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Spectroscopy

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