Novel Method for Synthesis of Hybrid Nanostructures on Graphene

Track Code: 
12KU026L
Summary: 

This is a novel seedless floating growth technique for synthesis of a variety of hybrid nanostructures on graphene, primarily for electronic and optoelectronic applications.

Overview: 

Graphene has attracted attention due to its potential in various electronic and optoelectronic device applications, including photovoltaics, photodetection, and energy storage. This invention is a floating growth scheme for creating semiconductor (or functional materials in general) nanostructures on graphene. The invention provides a low-cost and robust scheme for large-scale fabrication of semiconductor nanostructures on graphene.

Applications: 

The primary application of this technology would be in the fabrication of various graphene-based electronic and optoelectronic devices in large-scale and at low cost. This may include various detectors, sensors, and other optoelectronics which tend to require very thin layers for sensitivity reasons. Solar cells and energy storage devices are also enhanced by the combination of conductivity and transparency offered by graphene.

How it works: 

This invention is a novel synthetic strategy purposed for fabrication of hybrid semiconductor graphene nanostructures in large scale. By floating graphene sheets on the surface of a solution, this approach yields low-cost and robust schemes of large-scale fabrication nanostructures on graphene. The researchers have obtained crystalline ZnO nano/micro-rod bundles on graphene fabricated using chemical vapor deposition. UV detectors fabricated using the as-prepared hybrid ZnO-graphene nanostructure with graphene being one of the two electrodes show high sensitivity to ultraviolet light. This floating growth process provides a low-cost and robust scheme for large-scale fabrication of semiconductor nanostructures on graphene and may be applied for synthesis of a variety of hybrid semiconductor-graphene nanostructures demanded for optoelectronic applications including photovoltaics, photodetection, and photocatalysis.

Benefits: 

This invention allows for the fabrication of various graphene-based electronic and optoelectronic devices in large-scale production. This invention allows such production at a low cost which could benefit the cost-effectiveness of a number of products, including detectors, sensors, solar cells, and more.

Licensing Associate: 
Michael Patterson, JD · m.patterson@ku.edu · 785-864-6397
Inventor(s): 
Zhihong Wu
Jianwei Liu
Patent(s): 
US 8,878,157
Status: 
Patented