Luminescence

Researchers have set a new efficiency record for LEDs based on perovskite semiconductors, rivalling that of the best organic LEDs (OLEDs). Compared to OLEDs, which are widely used in high-end consumer electronics, the perovskite-based LEDs, developed by researchers at the University of Cambridge, ca more

Controlling the excited electronic states in luminescent systems remains a challenge in the development of fluorescent and phosphorescent dyes. Now, scientists in Japan have developed a unique organic fluorophore that changes its emission color without loss of efficiency when externally stimulated. more

An international team, led by researchers from the University of Geneva (UNIGE), Switzerland, has designed a family of molecules capable of binding to metal ions present in its environment and providing an easily detectable light signal during binding. This new type of sensor forms a 3D structure wh more

Cyclometalated Ir(III) complexes [Ir(tpy)(bbibH2)Cl][PF6] (1PF6) and [Ir(tpy)(bmbib)Cl][PF6] (2PF6), and the controlled complex [Ir(tpy)(mbib)Cl][PF6] (3PF6) have been synthesized at 135 oC for 10 hours for the former two complexes, while at 190 oC for 24 hours for the latter complex (Scheme 1), more

To exert the respective advantages of lanthanide complexes and metal–organic frameworks (MOFs) in luminescence and encapsulation, hierarchically organized hybrid MOF particles were developed to meet the requirements of stable luminescence for applications in biological media. Anionic terbium (Tb) co more

Homogeneous KSc2F7 microcrystals with controlled and abundant morphologies were prepared by a one-step hydrothermal route without employing any templates or surfactants. Particularly, uniform and well-defined KSc2F7 crystals with rod, sheet, flower-like, thin rectangular, xylitol-like and thin plate more