مشخصات پژوهش

عنوان	New Molecularly Engineered Binuclear Ruthenium (II) Complexes for Highly Efficient Near-Infrared Light-Emitting Electrochemical Cell (NIR-LEC)
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Near-Infrared Light-Emitting Electrochemical Cell, binuclear complex
چکیده	Abstract: From practical point of view, the stability, response time and efficiency of near-infrared light-emitting electrochemical cell (NIR-LEC) are key factors. By using the high potential of chemical modification potential of phenanthroimidazole ligand, three new binuclear ruthenium (II) complexes with alkyl spacer as NIR-emitter were designed and synthesized. NIR-LECs using the complexes afford near-infrared emission, with maximum wavelength of up to 705 nm and EQE of up to 0.72% at 4.0 V, were obtained which are among the highest for NIR-LECs based on cationic binuclear ruthenium (II) complexes reported so far. The lifetime of NIR-LEC based on binuclear complexes were increased about 1.5-to-4-fold respect to ones mononuclear complex. Furthermore, a significant decrease in turn-on time of NIR-LEC by chemical tethering of new ionic methylpyridinium moiety from 6.3 to 1.4 minute was observed. It seems that these combinational modification approach can open new avenue for practical applications.
پژوهشگران	بابک نعمتی (نفر اول)، هاشم شهروسوند (نفر دوم)