Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.

Abstract: An insulin-gold nanocluster, a pharmaceutical composition for treating diabetes comprising the insulin-gold nanocluster, and a method for detecting adipose cells in a tissue by using the insulin-gold nanocluster are provided. Herein, the insulin-gold nanocluster of the present invention comprises: a gold nanocluster, and insulin connecting to the gold nanocluster, wherein the insulin-gold nanocluster emits red fluorescence at maximized wavelength of 670 nm.

Abstract: The present invention provides a phosphorescent tris-chelated transition metal complex having one carbon-nitrogen (C^N) or nitrogen-nitrogen (N^N) chromophoric ligand forming a coordination sphere thereof with a transition metal, and two identical carbon-phosphorus (C^P) chelates being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the chromophoric ligands possess a relatively lower energy gap in comparison with that of the non-chromophoric chelate, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that bright phosphorescence can be observed. The architecture and energy gap of the present molecular designs are suitable for generation of high efficiency blue, green and even red emissions.

Abstract: An insulin-gold nanocluster, a pharmaceutical composition for treating diabetes comprising the insulin-gold nanocluster, and a method for detecting adipose cells in a tissue by using the insulin-gold nanocluster are provided. Herein, the insulin-gold nanocluster of the present invention comprises: a gold nanocluster, and insulin connecting to the gold nanocluster, wherein the insulin-gold nanocluster emits red fluorescence at maximized wavelength of 670 nm.

Abstract: The present invention provides a series of phosphorescent transition metal complexes having a facially arranged, carbon-phosphorus-carbon (C^P^C) tridentate chelate, alone with one monoanionic bidentate chromophoric chelate (either C^N or A^N) and one arbitrary charge neutral chelate (L), or with one charge neutral bidentate chromophoric chelate (N^N) and one arbitrary anionic ligand (X); all of them can be used to generate high efficiency photo-induced phosphorescence at room temperature, as well as bright electroluminescence upon employment of these materials in the fabrication of organic light-emitting devices.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.

Abstract: The present invention provides a phosphorescent tris-chelated transition metal complex having one carbon-nitrogen (C?N) or nitrogen-nitrogen (N?N) chromophoric ligand forming a coordination sphere thereof with a transition metal, and two identical carbon-phosphorus (C?P) chelates being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the chromophoric ligands possess a relatively lower energy gap in comparison with that of the non-chromophoric chelate, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that bright phosphorescence can be observed. The architecture and energy gap of the present molecular designs are suitable for generation of high efficiency blue, green and even red emissions.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical carbon-nitrogen (C^N) or nitrogen-nitrogen (N^N) chromophoric ligands being incorporated into a coordination sphere thereof with a transition metal, and one carbon-phosphorus (C^P) chelate being incorporated into the coordination sphere; or ii) one carbon-nitrogen (C^N) or nitrogen-nitrogen (N^N) chromophoric ligand forming a coordination sphere thereof with a transition metal, and two identical carbon-phosphorus (C^P) chelates being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the chromophoric ligands possess a relatively lower energy gap in comparison with that of the non-chromophoric chelate, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that bright phosphorescence can be observed.

Abstract: Panchromatic photo sensitizers having a Formula of ML1L2X were synthesized, wherein M represents ruthenium atom; X represents a monodentate anion; L1 is heterocyclic bidentate ligand having one of formulae listed below: wherein G2 has one of formulae listed below: and L2 is a tridentate ligand having a formula listed below: Substituents R1, R2, R3 and R4 of L1 are the same or different and are selected from the group consisting of hydrogen, halogens, amino-group alkyl, alkoxy, alkylthio, alkylamino, halogenated alkyl, phenyl and substituted phenyl group. Substituents R5, R6 and R7 of L2 are the same or different and are selected from the group consisting of carboxylic acid and counter anion thereof, sulfonic acid and counter anion thereof, phosphoric acid and counter anion thereof. The above-mentioned photosensitizers are suitable to use as sensitizers for fabrication of high efficiency dye-sensitized solar cell.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.

Abstract: The present invention provides a series of phosphorescent transition metal complexes having a facially arranged, carbon-phosphorus-carbon (C?P?C) tridentate chelate, alone with one monoanionic bidentate chromophoric chelate (either C?N or A?N) and one arbitrary charge neutral chelate (L), or with one charge neutral bidentate chromophoric chelate (N?N) and one arbitrary anionic ligand (X); all of them can be used to generate high efficiency photo-induced phosphorescence at room temperature, as well as bright electroluminescence upon employment of these materials in the fabrication of organic light-emitting devices.

Abstract: The present invention discloses organometallic complexes with transition metal elements and their application in fabrication of a variety of light-emitting devices. The mentioned organometallic complexes can serve as emitting material or dopant for blue phosphorescent organic light-emitting devices with excellent performance. The mentioned organometallic complexes have a general formula as the following: Wherein M represents a transition metal element, and Q1 and Q2 respectively represent an atomic group forming a nitrogen-containing heterocyclic ring as a five member ring, a six member ring, or a seven member ring.

Abstract: The present invention relates to a platinum complex as the following formula (I): wherein X, n, R1, R2, R3,R4, R5, X1, X2, L1, and L2 are defined the same as the specification. The present invention also further provides an organic light-emitting device using the same. The complexes of the present invention exhibit enhanced emission quantum yields, and short phosphorescence radiative lifetimes in the range of several microseconds so as to be applied in high efficiency OLEDs.

Abstract: Panchromatic photosensitizers having a Formula of ML1L2X were synthesized, wherein M comprises ruthenium atom; X is a monodentate anion; L1 is heterocyclic bidentate ligand having one of formulae listed below: wherein G2 has one of formulae listed below: and L2 is a tridentate ligand having a formula listed below: The substituents R1, R2, R3, R4, R5, R6, R7 of L1 and L2 are the same or different, and represent alkyl, alkoxy, alkylthio, alkylamino, halogenated alkyl, phenyl or substituted phenyl group, carboxylic acid or counter anion thereof, sulfonic acid or counter anion thereof, phosphoric acid or counter anion thereof, amino-group, halogens, or hydrogen. The above-mentioned photosensitizers are suitable to use as sensitizers for fabrication of high efficiency dye-sensitized solar cell.

Abstract: There is disclosed herein phosphorescent compounds, uses thereof, and devices including organic light emitting diode (OLEDs) including such compounds. Compounds of interest include: wherein A is Os or Ru The anionic chelating chromophores N^N, which are formed by connecting one pentagonal ring structure containing at least two nitrogen atoms to a hexagonal pyridine type of fragment via a direct carbon-carbon linkage. L is a neutral donor ligand; the typical example includes carbonyl, pyridine, phosphine, arsine and isocyanide; two neutral L's can also combine to produce the so-called chelating ligand such as 2,2?-bipyridine, 1,10-phenanthroline and N-heterocyclic carbene (NHC) ligand, or bidentate phosphorous ligands such as 1,2-bis(diphenylphosphino)ethane, 1,2-bis(diphenylphosphino)benzene. L can occupy either cis or trans orientation.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical carbon-nitrogen (C?N) or nitrogen-nitrogen (N?N) chromophoric ligands being incorporated into a coordination sphere thereof with a transition metal, and one carbon-phosphorus (C?P) chelate being incorporated into the coordination sphere; or ii) one carbon-nitrogen (C?N) or nitrogen-nitrogen (N?N) chromophoric ligand forming a coordination sphere thereof with a transition metal, and two identical carbon-phosphorus (C?P) chelates being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the chromophoric ligands possess a relatively lower energy gap in comparison with that of the non-chromophoric chelate, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that bright phosphorescence can be observed.

Abstract: The present invention relates to a platinum complex as the following formula (I): Xn (I) wherein X, n, R1, R2, R3,R4, R5, X1, X2, L1, and L2 are defined the same as the specification. The present invention also further provides an organic light-emitting device using the same. The complexes of the present invention exhibit enhanced emission quantum yields, and short phosphorescence radiative lifetimes in the range of several microseconds so as to be applied in high efficiency OLEDs.

Abstract: There is disclosed herein phosphorescent compounds, uses thereof, and devices including organic light emitting diode (OLEDs) including such compounds. Compounds of interest include: wherein A is Os or Ru The anionic chelating chromophores N?N, which are formed by connecting one pentagonal ring structure containing at least two nitrogen atoms to a hexagonal pyridine type of fragment via a direct carbon-carbon linkage. L is a neutral donor ligand; the typical example includes carbonyl, pyridine, phosphine, arsine and isocyanide; two neutral L's can also combine to produce the so-called chelating ligand such as 2,2?-bipyridine, 1,10-phenanthroline and N-heterocyclic carbene (NHC) ligand, or bidentate phosphorous ligands such as 1,2-bis(diphenylphosphino)ethane, 1,2-bis(diphenylphosphino)benzene. L can occupy either cis or trans orientation.