National University of Singapore

Perq-Jon Chia

Lay-Lay Chua

Peter Ho

Richard Henry Friend

Rui-Qi Png

Peter Kian-Hoon Ho

Zhi Kuang Tan

Shuai Wang

Sankaran Sivaramakrishnan

Bibin Thomas Anto

Kim Kian Choo

Ghim Siong Goh

Siong-Hee Khong

Jie-Cong Tang

This invention relates to a supported polymer heterostructure and methods of manufacture. The heterostructure is suitable for use in a range of applications which require semiconductor devices, including photovoltaic devices and light-emitting diodes.

Multilayer heterostructures for application in OLEDs and photovoltaic devices

A cross-linking moiety having a general formula I: Ar-W, wherein Arcomprises a fluorinated phenyl azide group having at least one non-fluorine substituent that is bulkier than fluorine at a meta position relative to the azide group, and W comprises an electron-withdrawing group.

Cross-linking moiety

A functionalised graphene oxide and a method of making a functionalized graphene oxide comprising: (i) oxidizing graphite to form graphite oxide wherein the graphene sheets which make up the graphite independently of each other have a basal plane fraction of carbon atoms in the sp-hybridised state between 0.1 and 0.9, wherein the remainder fraction comprises sp-hybridised carbon atoms which are bonded to oxygen groups selected from hydroxyl and/or epoxy and/or carboxylic acid; and (ii) exfoliating and in-situ functionalizing the graphite oxide surface with one or more functional groups such that fictionalization of the surface is effected at a concentration greater than one functional group per 100 carbon atoms and less than one functional group per six carbon atoms. The functionalized graphene oxide is dispersible at high concentrations in appropriate solvents without aggregating or precipitating over extended periods at room temperature.

Functionalised graphene oxide

There is provided a class of crosslinking compound, said compound comprising (i) one or more fluorinated aromatic group; and (ii) one or more ionizable group, wherein the crosslinking compound is soluble in at least one polar solvent. Methods of preparing the crosslinking compounds are also disclosed. There is further provided devices obtainable from the methods of preparing the crosslinking compounds.

Radiation crosslinker

Growing community of inventors

Singapore, Singapore

Perq-Jon Chia