Author/Authors :
Soltani Rad، M N نويسنده 1Shiraz University of Technology, Department of Chemistry, P. O. Box 71555-313, Shiraz 71557-13876, Iran , , Sharbati,، M T نويسنده Shiraz University of Technology, Department of Electrical and Electronics Engineering, P.O. Box 71555-313, Shiraz 71557-13876, Iran , , Behrouz، S نويسنده Shiraz University of Technology, Department of Chemistry, P. O. Box 71555-313, Shiraz 71557-13876, Iran , , Nekoei، A R نويسنده Shiraz University of Technology, Department of Chemistry, P. O. Box 71555-313, Shiraz 71557-13876, Iran ,
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.
