TY - JOUR ID - 3154 TI - 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 JO - Iranian Journal of Science JA - ISTT LA - en SN - 2731-8095 AU - Soltani Rad, M. N. AU - Sharbati, M. T. AU - Behrouz, S. AU - Nekoei, A. R. AD - Shiraz 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 AD - Shiraz University of Technology, Department of Electrical and Electronics Engineering, P.O. Box 71555-313, Shiraz 71557-13876, Iran AD - Shiraz University of Technology, Department of Chemistry, P. O. Box 71555-313, Shiraz 71557-13876, Iran Y1 - 2015 PY - 2015 VL - 39 IS - 3 SP - 297 EP - 304 KW - OLED KW - curcumin KW - donor-acceptor-donor (D-A-D) KW - electroluminescent (EL) KW - low turn on voltage DO - 10.22099/ijsts.2015.3154 N2 -   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. UR - https://ijsts.shirazu.ac.ir/article_3154.html L1 - https://ijsts.shirazu.ac.ir/article_3154_98e50da51dabf8fa9b3d2c2faed47396.pdf ER -