Scientists have developed a new hybrid, solar-energy system that harnesses the full spectrum of the sun's radiation by pairing a photovoltaic cell with polymer films. The films convert the light that goes unused by the solar cell into heat and then converts the heat into electricity.
Scientists have developed a new paper device that analyzes DNA and could rapidly and inexpensively assess disparate conditions including hepatitis B and male infertility, which together affect millions of people around the world.
Researchers are developing technology to make pacemakers battery-free. The advancement is based upon a piezoelectric system that converts vibrational energy - created inside the chest by each heartbeat - into electricity to power the pacemaker.
In animals, the physical mechanisms and function of structural color have been studied significantly as a signal for recognition or mate choice. On the other hand, scientists believe that such shimmering in plants can actually influence animal behavior by attracting pollinators better than their non-iridescent counterparts.
Although a so-called 'phonon laser' has been previously demonstrated, the high device quality and strict experimental conditions make it too complex for a rapid diffusion of the technology. Researchers now detail a new physical mechanism that allows phonon lasing under far more relaxed configurations.
An international team of researchers created an ultrafast all-optical switch on silicon nanostructures. This device may become a platform for future computers and permit to transfer data at an ultrahigh speed.