作者：tang rp, et al
关键字：electroluminescence
论文来源：期刊
具体来源：Journal of Electronic Materials
发表时间：2012年
Two random copolymers of phenylene vinylene and pyridinylene vinylene, ED-co-PyV-PPV and EM-co-PyV-PPV, were synthesized according to the Gilch route. The polymers possess good solubility in common solvents, and high thermal stability with 5% weight loss temperature above 378C. The weightaverage molecular weight (Mw) and polydispersity index of ED-co-PyV-PPV and EM-co-PyV-PPV are 3.12 9 105 and 1.40, and 2.30 9 105 and 1.96, respectively. Single-layer polymer light-emitting diodes (PLEDs) with indium
tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) (PEDOT):poly(styrenesulfonate)
(PSS)/polymer/Ca/Al configuration were fabricated. The turn-on voltages of the PLEDs based on ED-co-PyV-PPV and EM-co-PyV-PPV were approximately 4.0 V and 2.8 V, respectively. The ED-co-PyV-PPV PLED device exhibited the maximum luminance of ca. 4380 cd/m2 with maximum electroluminescence (EL) efficiency of 6.35 cd/A.