Molecular Legos
1 / 1

NSF-MRSEC - PowerPoint PPT Presentation

  • Uploaded on

Molecular Legos . G. Rojas, X. Chen, Yi Gao, X.-G. Zeng, P. Dowben, A. Enders ( Nebraska MRSEC) W. Choe ( UNL Chemistry).

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'NSF-MRSEC' - dee

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Nsf mrsec

Molecular Legos

G. Rojas, X. Chen, Yi Gao, X.-G. Zeng, P. Dowben, A. Enders (Nebraska MRSEC)

W. Choe (UNL Chemistry)

Nebraska MRSEC exploits the huge potential of molecular self-assembly on surfaces to form ordered 2D organics, as model systems for the study of the fundamental relationship between their structure and their physical properties. To this end, organic nano-architectures are engineered like Legos, molecule-by-molecule, to achieve desired functionality. Porphyrin molecules are of particular interest here because many different metal atoms can be inserted into the porphyrin ring, thus offering a wealth of possibilities to manipulate the structures and their properties. A key finding is that the delicate balance between molecule – molecule interactions and molecule – substrate interactions can be directed with the substrate, thereby allowing us to steer the self-assembled growth as well as to manipulate some of the key properties of the organic nanostructures. This research improves our current understanding of these organic nanomaterials with significant potential for application in molecular electronics, sensors, catalysts, actuators, and opto-electronics.

The STM image shows a surface-supported network of porphyrin molecules on Ag(111). Individual molecules that constitute the 2D molecular network are clearly visible. Model porphyrin molecules are superimposed, to show the arrangement of the molecules in the network. Image size: 10 nm x 10 nm.

These programs are supported by the National Science Foundation, Division of Materials Research, Materials Research Science and Engineering Program, Grant 0820521.