Ferroelectric self-assembled molecular materials showing both rectifying and switchable conductivity

Ferroelectric self-assembled molecular materials showing both rectifying and switchable conductivity

Advanced molecular materials that combine two or more physical properties are typically constructed by combining different molecules, each being responsible for one of the properties required. Ideally, single molecules could take care of this combined functionality, provided they are self-assembled correctly and endowed with different functional subunits whose strong electronic coupling may lea...

Imaging of self-assembly and self-assembled materials

Self-assembled materials have recently been of great interest to a wide range of scientists for multiple, and indeed quite disparate applications. Self-assembly has been proposed as a route to photonic band gap materials, semiconductor devices, molecular sieves, biomaterials, and molecular monolayers. For many of these processes, there are few very good routes to image the self-assembly process...

Self-assembled multicomponent Pd6 aggregates showing low-humidity proton conduction.

Two Pd6 molecular aggregates (1 and 2), self-sorted via a template-free three-component self-assembly process, represent new examples of discrete architectures exhibiting very high proton conductivity [0.78 × 10(-3) S cm(-1) (1) and 0.22 × 10(-3) S cm(-1) (2)] at 300 K at low relative humidity (∼46%) with low activation energy comparable to that of currently used Nafion in fuel cells.

Switching properties of self-assembled ferroelectric memory cells

Self-assembled tin-based bridged hybrid materials.

Hybrid materials where layers of tin oxide alternate with layers of hydrophobic organic chains were prepared by the hydrolysis of distannylated compounds containing an organic chain alpha,omega-disubstituted by tripropynylstannyl groups. In the case of an aliphatic chain, hydrolysis under microemulsion conditions led to the organization of the corresponding hybrid. These hydrolysis conditions a...