Other

The University of Hong Kong

The Hong Kong Polytechnic University

Wei Lu

Chi-Ming Che

Michael Chi-Wang Chan

Kwok-yin Wong

Zhike He

Disclosed herein are novel light-emitting materials of Formula I and II below. These new complexes are synthesized and found to be sufficiently stable to allow sublimation and vacuum deposition. These new emitters are electrophosphorescent and can be used in organic light-emitting devices (OLEDs) for device elements capable of emitting light of color ranging from orange to red with high-efficiency and high-brightness.  wherein E=Group 16 elements (including sulphur); M=Group 10 metal (including platinum); R-Rare each independently selected from the group consisting of hydrogen; halogen; alkyl; substituted alkyl; aryl; substituted aryl, with substituents selected from the group consisting of halogen, lower alkyl and recognized donor and acceptor groups. Rcan also be selected from (C&#x2261;C)R, where (C&#x2261;C) represents a carbon-carbon triple bond (acetylide group), n is selected from 1 to 10, and Ris selected from alkyl, aryl, substituted aryl, and tri(alkyl)silyl.

Organometallic light-emitting material

Disclosed herein are novel light-emitting materials of Formula I and II below. These new complexes are synthesized and found to be sufficiently stable to allow sublimation and vacuum deposition. These new emitters are electrophosphorescent and can be used in organic light-emitting devices (OLEDs) for device elements capable of emitting light of color ranging from orange to red with high-efficiency and high-brightness. 

Disclosed herein are novel light-emitting materials of Formula I and II below. These new complexes are synthesized and found to be sufficiently stable to allow sublimation and vacuum deposition. These new emitters are electrophosphorescent and can be used in organic light-emitting devices (OLEDs) for device elements capable of emitting light of color ranging from orange to red with high-efficiency and high-brightness. wherein E=Group 16 elements (including sulphur); M=Group 10 metal (including platinum); R-Rare each independently selected from the group consisting of hydrogen; halogen; alkyl; substituted alkyl; aryl; substituted aryl, with substituents selected from the group consisting of halogen, lower alkyl and recognized donor and acceptor groups. Rcan also be selected from (C&#x2261;C)R, where (C&#x2261;C) represents a carbon-carbon triple bond (acetylide group), n is selected from 1 to 10, and Ris selected from alkyl, aryl, substituted aryl, and tri(alkyl)silyl.

A luminescent sensory material for the detection of the presence of organo-halogen compounds is described. This material is based on a platinum chromophore functionalized with pyridylacetylide ligands, as shown in Formulae I and II below. These complexes exhibit positive luminescence upon exposure to the vapors of organ-halogen compounds like CHClor CHClwith high selectivity over non-chlorinated common organic vapors. Direct relationships between vapor concentration and luminescence intensity are established using thin films prepared from these complexes.

Growing community of inventors

Hong Kong, China

Wei Lu