Provided are a test strip for short-wave near infrared immunofluorescence chromatographic detection, a system for immunofluorescence chromatographic detection and a method for quantifying an analyte in a sample. The test strip for short-wave near infrared immunofluorescence chromatographic detection includes: a body, defining a sample region, a binding region, a detecting region and an adsorbing region connected with one another sequentially; a first antibody, labeled with a fluorescent microsphere, coated on the binding region and configured to specifically recognize an analyte; a detecting line and a quality control line, located in the detecting region, wherein the detecting line closes to the binding region; a second antibody, coated on the detecting line and configured to specifically recognize the analyte; and a third antibody, coated on the quality control line and configured to specifically recognize the first antibody, in which the fluorescent microsphere is a near-infrared II polymer fluorescent microsphere.

The present invention relates to compounds according to formula (1) and formula (2), said compounds being suitable for use in electronic devices, in particular organic electroluminescent devices.

A light-emitting element having high emission efficiency is provided. A light-emitting element which has high emission efficiency without using a rare metal as a light-emitting material is provided. A light-emitting element includes a first electrode, a second electrode, and a layer between the first electrode and the second electrode. The layer contains a first organic compound and a second organic compound. The second organic compound has a carbazole skeleton and a substituted or unsubstituted bivalent aromatic hydrocarbon group. The second organic compound further has a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The aromatic hydrocarbon group is bonded to the carbazole skeleton. The aromatic hydrocarbon group is bonded to the benzofuropyrimidine skeleton or the benzothienopyrimidine skeleton. The first organic compound and the second organic compound can form an exciplex.

The present specification provides a nitrogen-containing condensed cyclic compound of chemical formula 1 and an organic light emitting device comprising the same.

The present invention provides an organic electric element in which a first electrode, a second electrode, and an organic material layer are sequentially stacked, wherein the organic material layer comprises a hole transport layer, an emission-auxiliary layer and a light emitting layer, at least one of the hole transport layer and the emission-auxiliary layer comprises the compound represented by Formula 1, and the light emitting layer comprises the compound represented by Formula 2. According to the present invention, the driving voltage of an organic electronic device can be lowered, and the luminous efficiency, color purity and life time of an organic electronic device can be improved.

An organic semiconductor element in which an organic semiconductor layer contains a compound of Formula (1) and/or a compound of Formula (2) or contains a polymer having a structure of any one of Formulae (9) and (10):

##STR00001## in which X.sup.1 represents a nitrogen atom or CR.sup.a, rings A to D each represent a specific aromatic ring or an aromatic heterocyclic ring; Y.sup.1 represents an oxygen atom, a sulfur atom, CR.sup.b.sub.2, or NR.sup.c; R.sup.a to R.sup.c each represent hydrogen atoms or substituents; R.sup.1 and R.sup.2 each represent a to specific substituent; n represents 1 or 2; and * represents a bonding site.

Disclosed is a benzazole derivative having a heteroaryl group, wherein the benzazole derivative having the heteroaryl group is represented by Chemical Formula 1. Also disclosed is an organic electroluminescence device including an organic layer containing the benzazole derivative having the heteroaryl group:

##STR00001##

wherein, each of Z1, X1, X2, X3, Ar1, Ar2, Ar3, m1, m2 and q is the same as defined in the specification.

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having excellent thermal stability, low driving voltage, high luminous efficiency, and/or improved lifespan properties.

The invention provides highly fluorescent materials comprising a single (i=0) or a series (i=1, 2, etc.) of heterocyclic systems. The chromophores are particularly useful for absorption and emission of photons in the visible and near infrared wavelength range. The photo-stable highly luminescent chromophores are useful in various applications, including in wavelength conversion films. Wavelength conversion films have the potential to significantly enhance the solar harvesting efficiency of photovoltaic or solar cell devices.

A compound comprising a ligand L.sub.A coordinated to a metal M

##STR00001## wherein ring A, ring T, and ring W are independently selected from a 5-membered or 6-membered heterocyclic or carbocyclic ring, and the ring W is fused to the ring T. The metal compounds having a ligand L.sub.A can be found in an OLED that includes an organic layer positioned between an anode and a cathode where the organic layer comprises a metal compound above having a ligand L.sub.A disclosed herein. We also describe a consumer product comprising the OLED.