The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2013
Filed:
Apr. 01, 2011
Timothy M. Swager, Newton, MA (US);
Jye-shane Yang, Ping-Chen, TW;
Vance Williams, Vancouver, CA;
Yijun Miao, Falls Church, VA (US);
Claus G. Lugmair, San Jose, CA (US);
Igor A. Levitsky, Fall River, MA (US);
Jinsang Kim, Ann Arbor, MI (US);
Robert Deans, Grafton, MA (US);
Timothy M. Swager, Newton, MA (US);
Jye-Shane Yang, Ping-Chen, TW;
Vance Williams, Vancouver, CA;
Yijun Miao, Falls Church, VA (US);
Claus G. Lugmair, San Jose, CA (US);
Igor A. Levitsky, Fall River, MA (US);
Jinsang Kim, Ann Arbor, MI (US);
Robert Deans, Grafton, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or π-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state. The present invention also relates to devices and methods for amplifying emissions by incorporating a polymer having an energy migration pathway and/or providing the polymer as a block co-polymer or as a multi-layer.