Skip To The Main Content

Browse these ideas available for licensing that have the potential to improve lives while creating jobs to support and grow the region.


All ideas
are listed as non-confidential technical summaries.

Ideas were generated by academic institutions, entrepreneurs, and corporations.

Ideas from our research institution partners can be reviewed by following the web links to their database.

Highlighted ideas from our partners are featured separately and organized by category. All listings are updated as new technology opportunities become available..

For assistance in connecting with, or attaining further information on any of these technologies, please contact us.

High Performance Biodegradable Low-Cost Nanohybrids for Infrared Detectors

This invention introduces carbon-biomaterial nanohybrids for use in high-performance, low-cost optoelectronic devices such as infrared detectors.

Thermal sensing devices such as thermographic cameras make use of infrared (IR) detectors that can be either cooled or uncooled. Uncooled IR detectors are more practical and cost-effective for typical applications, but their performance is limited by the properties of their key materials (often conventional semiconductors such as vanadium oxide, VO2). Single-walled carbon nanotube (SWCNT)-based photodetectors have received strong attention in the past two decades based on their strong light absorption, efficiency, and low cost. However, the photoexcited electron-hole pairs (or excitons) in SWCNTs have unusually high binding energy, which hinders the excitons' dissociation into photocurrents. An effective exciton dissociation mechanism therefore represents a critical challenge toward high-performance CNT-based IR detectors. Previous research has shown that SWCNT-polymer nanohybrids form heterojunctions that improve performance. The present invention provides further improvement by replacing the polymer with biological macromolecules.

APPLICATIONS: 

Low-cost uncooled photodetectors for use in thermal sensing devices

HOW IT WORKS:

The feasibility of this invention has been demonstrated by KU researchers using the Cytochrome complex (Cyt c) biomolecule. Solutions of Cyt c and SWCNTs were mixed to promote self-assembly of SWCNT/Cyt c hybrid building blocks (helical wrapping of Cyt c around each SWCNT). The resulting thin films provide a composite of well-dispersed heterojunctions. When light impinges onto the photodetector, excitons generate in the SWCNTs and rapidly diffuse to the heterojunction interface where the Cyt c accepts the electrons and conducts to the external electrode.

BENEFITS:

Near infrared (NIR) responsivity of this invention has been measured at levels more than two orders of magnitude better than SWCNT-polymer hybrids. This result suggests that SWCNT-biomolecule hybrids may lead to uncooled IR detectors with unprecedented performance.

WHY IT IS BETTER:

CNT-based photodetectors show great potential to outperform conventional semiconductor-based photodetectors. This invention presents the best performance yet achieved using CNTs and thus presents a promising basis for future photodetector technology.

OTHER APPLICATIONS:

Photonics, optoelectronics, and other electronic devices

Additional Details

Owner

University of Kansas

Intellectual Property Protection

Pending Patent



Interested? Request More Information