Solar Powered Mobile Phones
Scientists from the Fraunhofer Institute for Solar Energy Systems are exploring new methods of harvesting energy to power mobile devices — including light (solar power), heat, and motion.
For example, the Fraunhofer Institute for Physical Measurement Techniques IPM employs thermoelectrics: energy is generated by a heat flow source such as the user’s wrist. Prominent clock makers use this technology to power watches. Micro-integrated thermo-electric converters can also be used to cool electronic components