Soltani Rad, M., Sharbati, M., Behrouz, S., Nekoei, A. (2015). 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 and Technology (Sciences), 39(3), 297-304. doi: 10.22099/ijsts.2015.3154
M. N. Soltani Rad; M. T. Sharbati; S. Behrouz; A. R. 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 and Technology (Sciences), 39, 3, 2015, 297-304. doi: 10.22099/ijsts.2015.3154
Soltani Rad, M., Sharbati, M., Behrouz, S., Nekoei, A. (2015). '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 and Technology (Sciences), 39(3), pp. 297-304. doi: 10.22099/ijsts.2015.3154
Soltani Rad, M., Sharbati, M., Behrouz, S., Nekoei, A. 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 and Technology (Sciences), 2015; 39(3): 297-304. doi: 10.22099/ijsts.2015.3154
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
1Shiraz University of Technology, Department of Chemistry, P. O. Box 71555-313, Shiraz 71557-13876, Iran 2Shiraz University of Technology, Department of Electrical and Electronics Engineering, P.O. Box 71555-313, Shiraz 71557-13876, Iran
2Shiraz University of Technology, Department of Electrical and Electronics Engineering, P.O. Box 71555-313, Shiraz 71557-13876, Iran
3Shiraz 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.
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