T he success of electronic paper, roll-up displays and many other potential applications of flexible electronics will depend on the availability of electronic materials that can be stretched, compressed and bent. Previous efforts to develop electronic materials that can be mechanically deformed without breaking have mainly focused on small organic molecules and polymers. Unfortunately, these ma...

An overview of developments in materials theory is presented, with an emphasis on first-principles calculations. Examples are given from the fields of heterojunction interfaces and point defects in semiconductors. Predictive theories of materials are shown to be increasingly important for understanding but also designing materials and structures. © 2003 American Vacuum Society. @DOI: 10.1116/1....

Electronic supplementary material is available at http://dx.doi.org/10.1098/rsta.2012.0003 or via http://rsta.royalsocietypublishing.org. The energy required to produce materials: constraints on energy-intensity improvements, parameters of demand Timothy G. Gutowski1, Sahil Sahni2, Julian M. Allwood3, Michael F. Ashby3 and Ernst Worrell4 1Department of Mechanical Engineering, and 2Department of...

Parameter-free calculations based on the density-functional theory are used to examine high-pressure phases of solids. For the elemental semiconductors, as represented by Si, the high-pressure phases are examined in some detail, and particular attention is paid to the Si-VI orthorhombic (Cmca) structure which was resolved only very recently. For III-V semiconductors the optimization of the stru...

1037 Abstract In complex transition-metal oxides, the interactions between the electronic spins, charges, and orbitals produce a rich variety of electronic phases. The competition and/or cooperation among these correlated-electron phases can lead to the emergence of surprising electronic phenomena and functionalities and form the basis for a new type of electronics. Strongly Correlated Electron...

The growing ubiquity of electronic devices is increasingly consuming substantial energy and rare resources for materials fabrication, as well as creating expansive volumes of toxic waste. This is not sustainable. Electronic biological materials (e-biologics) that are produced with microbes, or designed with microbial components as the guide for synthesis, are a potential green solution. Some e-...