The world's energy consumption is increasing as the driving forces of globalization, industrialization and markets’ wealth are growing. A rising worldwide demand for efficient, energetic and long-term sources of energy is becoming vital. In the absence of cost efficient alternatives for creating a long-term sustainable future, solar cells have not been able to compete economically with fossil fuels. Scientists at Chalmers use nanotechnology to bringing down the costs – enhancing the ability to absorb of sunlight while lowering costs.
Solar cells are constructed of layers that absorb sunlight and convert it to electoral current. By the use of nanotechnology, scientists integrate small particles that catch the light as tiny antennas and via the oscillations the energy is passed on as energy. These particles haven been produced according to determined properties in order to enhance the ability to absorb sunlight.