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PHOTOACTIVE CATALYST COMPOSITIONS

United States Patent Application

20180067393
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The present disclosure is directed to photosensitive compositions `Fischer-type` ruthenium carbene catalysts containing chelated 2,2'-bipyridine ligands and methods of using the same. These catalysts are surprisingly active even when using relatively low intensity diode light sources. The 2,2'-bipyridine-chelated ruthenium photocatalysts show reactivity at substantially lower exposure levels than other photoactive chelating dinitrogen ligands of similar structure. The present disclosure is further directed to novel photosensitive compositions, their use as photoresists, and methods related to patterning polymer layers on substrates.
WEITEKAMP, RAYMOND A. (GLENDALE, CA)
15/ 692,229
August 31, 2017
GOVERNMENT RIGHTS [0002] This invention was made with government support under Grant No. 16447467 awarded by the National Science Foundation and Grant No. DE-AC05-060R23100 awarded by the US Department of Energy. The government has certain rights in the invention.