This study reports the performances of a single structured light-emitting diode (LED) devices based on polymer material poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) mixed with various concentrations of perovskite oxide strontium titanate (SrTiO₃) particles deposited as a composite PHF: SrTiO₃ emitting layer. The performances of the single structured organic LED indium tin oxide (ITO)/PHF/aluminum (Al) device and the composite LED ITO/PHF: SrTiO₃/Al devices were compared in terms of turn-on voltage and luminance intensity. By incorporating perovskite SrTiO₃ particles into PHF emitting layer, the turn-on voltage of the device is significantly reduced from 11.25 V to 1.80 V and the luminance intensity increased from 57.7 cd/m² to 609 cd/m². The improvement of turn-on voltage and the electroluminescence spectrum of the composite devices were found to be dependent on the weight ratios of SrTiO₃ content in the PHF emitting layer.

这项研究报告了基于混合了各种浓度钙钛矿氧化物锶的聚合物材料聚（9,9-二-正己基芴基-2,7-二基）（PHF）的单结构发光二极管（LED）器件的性能。钛酸酯（SrTiO ₃）颗粒沉积为复合PHF：SrTiO ₃发射层。比较了单结构有机LED铟锡氧化物（ITO）/ PHF /铝（Al）器件和复合LED ITO / PHF：SrTiO ₃ / Al器件的导通电压和亮度强度。通过掺入钙钛矿SrTiO ₃颗粒进入PHF发射层后，器件的开启电压从11.25 V显着降低到1.80 V，亮度强度从57.7 cd / m ²增加到609 cd / m ²。发现复合器件的导通电压和电致发光光谱的改善取决于PHF发射层中SrTiO ₃含量的重量比。