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Fabrication of non-doped red organic light emitting diode using naturally occurring Curcumin as a donor-acceptor-donor (D-A-D) emitting layer with very low turn-on voltage
Iranian Journal of Science & Technology (2015)
  • mohammad taghi sharbati, University of Pittsburgh
  • Mohammad Navid Soltani Rad, Shiraz University of Technology
  • Somayeh Behrouz, Shiraz University of Technology
  • Abdo-Reza Nekoei, Shiraz University of Technology
Abstract
The fabrication of a non-doped red organic light-emitting device (OLED) has been developed using naturally occurring curcumin as an emissive layer of OLED. In this research, the electroluminescent spectrum (EL) of curcumin as a donor-acceptor-donor (D-A-D) chromophore was obtained at wavelength of 612 nm. Also, the maximum external quantum efficiencies (EQE) for this device was measured and found to be 0.029 %. The device was characterized by low driving voltage below 1 V at a current density of 7 mA/cm2. High color purity with Commission International de l’Eclairage coordinates was measured and found to be (0.544, 0.441). Quantum mechanical calculations were achieved base on DFT/B3LYP/6-311G (d,p) level of theory to rationalize the optical properties, indicating the optimized energy and computing the HOMO-LUMO values. Good conformity was observed between theoretical and experimental data.
Keywords
  • OLED,
  • Organic Light Emitting Diodes,
  • Donor-Acceptor-Donor,
  • D-A-D,
  • Curcumin,
  • Curcumin based OLED,
  • PL of Curcumin,
  • EL of Curcumin
Publication Date
Summer July 1, 2015
Citation Information
mohammad taghi sharbati, Mohammad Navid Soltani Rad, Somayeh Behrouz and Abdo-Reza Nekoei. "Fabrication of non-doped red organic light emitting diode using naturally occurring Curcumin as a donor-acceptor-donor (D-A-D) emitting layer with very low turn-on voltage" Iranian Journal of Science & Technology Vol. 39 Iss. 3 (2015) p. 297 - 304
Available at: http://works.bepress.com/MohammadTaghi-Sharbati/7/