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| Piezoelectrics and butterflies: Now scientists know more about how the materials actually work Posted: 30 Jan 2014 10:31 AM PST Piezoelectrics, materials that can change mechanical stress to electricity and back again, are everywhere in modern life. Computer hard drives. Loudspeakers. Medical ultrasound. Sonar. But there are major gaps in our understanding of how they work. Now researchers believe they've learned why one of the main classes of these materials, known as relaxors, behaves in distinctly different ways from the rest. The discovery comes in the shape of a butterfly.  |
| Posted: 30 Jan 2014 06:13 AM PST The ability to modulate the physical properties of graphene oxide within electronic components could have numerous applications in technology. Super-strong graphene oxide (GO) sheets are useful for ultrathin, flexible nano-electronic devices, and display unique properties including photoluminescence and room temperature ferromagnetism.  |
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