A compound containing indolocarbazole having a formula: ##STR00001##
Formula I is disclosed.

Tridentate platinum, palladium, and gold complexes of Formulas A-I and A-II and tridentate iridium and rhodium compounds of Formulas B-I, B-II, and B-III suitable for delayed fluorescent and phosphorescent or phosphorescent emitters in display and lighting applications.

##STR00001##

Disubstituted diaryloxybenzoheterodiazole compound of general formula (I): ##STR00001##
in which: Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR.sub.5 group in which R.sub.5 is selected from linear or branched C.sub.1-C.sub.20, or from optionally substituted aryl groups; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in the claims. The disubstituted diaryloxybenzoheterodiazole compound of general formula (I) can advantageously be used as a spectrum converter in luminescent solar concentrators (LSCs) which are in turn capable of improving the performance of photovoltaic devices (or solar devices) selected, for example, from photovoltaic cells (or solar cells), photovoltaic modules (or solar modules) on either a rigid substrate or a flexible substrate.

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited: ##STR00001##

The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. The present invention furthermore relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.

The present invention relates to spiro compounds containing electron-conducting groups and to electronic devices, in particular organic electroluminescent devices, comprising these compounds.

Disclosed herein is an organic light-emitting diode capable of operating at a low voltage with high efficiency. It comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B, and the compound represented by the following Chemical Formula C. Chemical Formulas A, B and C are as described in the Specification.

An objective of the disclosure is to provide an organic light-emitting composite material based on an exciplex, which, when used as a light-emitting layer, can enhance the efficiency of an organic electroluminescent device. The disclosure also relates to an organic light-emitting device comprising the organic light-emitting composite material, and use of the organic light-emitting composite material of the disclosure for an organic electron device.

Embodiments described herein generally relate to: sensing and/or authentication using luminescence imaging; diagnostic assays, systems, and related methods; temporal thermal sensing and related methods; and/or to emissive species, such as those excitable by white light, and related systems and methods.

The invention relates to novel organic semiconducting compounds containing a polycyclic unit, to methods for their preparation and educts or intermediates used therein, to compositions, polymer blends and formulations containing them, to the use of the compounds, compositions and polymer blends as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, perovskite-based solar cell (PSC) devices, organic photodetectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE, OPV, PSC, OPD, OFET and OLED devices comprising these compounds, compositions or polymer blends.