Charge Storage and Switching Phenomena with Molecular Assemblies of Metal Complexes
Abstract
The central theme of the four research areas has been and is intramolecular and intermolecular charge separation in materials, (metal complexes and oligomeric thiophene) directed towards the preparation of molecular assemblies useful in molecular electronics. The multielectron redox materials study has been completed and the generality of the charge localization scheme proposed by us for (Ru(L3)(2+) materials has been established for n=l through 5 electrons. The one and two electron reduction are best adapted as intramolecular switching molecules. The liquid-liquid media has been established as an appropriate media for intermolecular charge separation using an external electric field to control the charge switching. The use of sol-gel media in the liquid-liquid experimental arrangement allows durable and portable charge separation assemblies. The oligomer-polymer materials provide a concentrated and durable molecular species capable of intermolecular and intramolecular charge separation at interfaces (liquid-liquid) and in Langmuir-Blodgett assemblies. The pendant Ru(II) complexes and the orthogonal thiophene oligomers both possess the perpendicular arrangement of pi electron systems that can lead to charge storage and molecular switching. The mixed metal complex/fatty acid Langmuir- Blodgett films provide the organized molecular assembly system with the best potential for molecular electronics. Our development of a technique for producing durable and portable LB films with a great range of metal complex types implies that this approach may be preferable to the fluid solution L-L- sol-gel approach.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1993
- Accession Number
- ADA266673
Entities
People
- M. K. Dearmond
Organizations
- New Mexico State University