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Near infraredorganiclight-emittingdiodesbasedon acceptor–donor–acceptor(ADA)usingnovelconjugatedisatinSchiffbases
Journal of Luminescence (2011)
  • mohammad taghi sharbati, University of Pittsburgh
  • Mohammad Navid Soltani Rad, Shiraz University of Technology
  • Somayeh Behrouz, Shiraz University of Technology
  • Alireza Gharavi, Shiraz University
  • Farzin Emami, Shiraz University of Technology
Abstract
Fabrications of a single layer organic light emitting diodes (OLEDs) based on two conjugated acceptor–donor–acceptor (ADA) isatin Schiff bases are described. The electroluminescent spectra of these materials range from 630 to 700 nm and their band gaps were measured between 1.97 and 1.77 eV. The measured maximum external quantum efficiencies (EQE) for fabricated OLEDs are 0.0515% and 0.054% for two acceptor–donor–acceptor chromophores. The Commission International De L’Eclairage (CIE) (1931) coordinates of these two compounds were attained and found to be (0.4077, 0.4128) and (0.4411, 0.4126) for two used acceptor–donor–acceptor chromophores. The measured IV curves demonstrated the apparent diode behavior of two ADA chromophores. The turn-on voltages in these OLEDs are directly dependent on the thickness. These results have demonstrated that ADA isatin Schiff bases could be considered as promising electroluminescence-emitting materials for fabrication of OLEDs.
Keywords
  • OLED,
  • Organic Light Emitting Diode,
  • Acceptoe-Donor-Acceptor,
  • ADA,
  • ADA Isatin Schiff Base,
  • Isatin Schiff BAsed OLED,
  • PL of Isatin,
  • EL of Isatin,
  • Single Layer OLED,
  • Near-Infra Red OLED
Publication Date
Spring April 1, 2011
DOI
http://dx.doi.org/10.1016/j.jlumin.2010.10.016
Citation Information
mohammad taghi sharbati, Mohammad Navid Soltani Rad, Somayeh Behrouz, Alireza Gharavi, et al.. "Near infraredorganiclight-emittingdiodesbasedon acceptor–donor–acceptor(ADA)usingnovelconjugatedisatinSchiffbases" Journal of Luminescence Vol. 131 Iss. 4 (2011) p. 553 - 558 ISSN: 0022-2313
Available at: http://works.bepress.com/MohammadTaghi-Sharbati/6/