Phys. org  July 18, 2022 Researchers in Germany showed that precisely applied mechanical pressure can improve the electronic properties of a widely used ferroelectric semi-crystalline polymer material polyvinylidene fluoride (PVDF). However, PVDF’s structure, unlike crystals, is not completely ordered. They discovered that atomic force microscopy can be used to establish a certain electric order in the material. They scanned the material sample with a tip only a few nanometers in size. Using a laser they measured, evaluated the vibrations that were produced, and analyzed the material’s surface structure at the nano level. They discovered that this also changed the electrical […]